cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25549/whittington-ouc12975940
title: Blossoms at Banning - Packard Motorlogue, Banning, Calif., 1936

description: 9 photographs of an automobile parked among blossoming trees, with adults and children among the blossoms, Banning, California, 1936 February 29. Included is one view of a child standing on the automobile amid flowers. "Client: Earl C. Anthony, Inc[orporated]; (2nd envelope); Classifications: D. Flowers, Trees" -- on envelope front. "Operator's report -- name: Joe; 7 original photographs; out of city; Amount: 30.50" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled 6 print orders and sold reproduction rights once.
DOI: 10.25549/whittington-ouc1sto758404
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whittington-ouc17039521
title: Union Hardware Christmas catalog photos, Los Angeles, Calif., 1941

description: 43 photographs of various gifts and toys for Union Hardware Christmas catalog. "Subject: Christmas booklet, Client: Union Hardware Co., Operator's Report -- Name: Cross" -- on envelope (split between two envelopes)
DOI: 10.25549/whittington-ouc12975948
title: Blossoms at Banning - Packard Motorlogue, Banning, Calif., 1936

description: 9 photographs of an automobile parked among blossoming trees, with adults and children among the blossoms, Banning, California, 1936 February 29. Included is one view of a child standing on the automobile amid flowers. "Client: Earl C. Anthony, Inc[orporated]; (2nd envelope); Classifications: D. Flowers, Trees" -- on envelope front. "Operator's report -- name: Joe; 7 original photographs; out of city; Amount: 30.50" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled 6 print orders and sold reproduction rights once.
DOI: 10.25549/whittington-ouc17039132
title: Intersection of Country Club Drive and Victoria, Los Angeles, Calif., 1941

description: 9 photographs: 7 images of an intersection and 2 of a badly damaged automobile, Los Angeles, California, 1941 June 2. "Subject: Intersection of Country Club Drive and Victoria, also Chrysler sedan." "Client: Maryland Casualty, Mathews; operator's report - name: Joe; 2 interiors - 6.00, 7 exteriors - 15.00; two locations; Amount: 21.00" - on envelope.
DOI: 10.25549/whit-c170-105831
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whit-c170-105802
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whit-c170-105735
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whit-c170-105513
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whittington-ouc12975950
title: Valley & Pasadena properties publicity, Los Angeles County, 1936

description: 19 photographs of a model (Geraine Greer) either inside or outside new homes in the San Fernando Valley, Los Angeles County, California, 1936 February 29. In images 18 and 19 (negatives 1 and 2) a woman tends chickens. "Client: California Bank; Agency: Geo[rge] Stiller; 2nd envelope; Classifications: A - birds etc - H - Women L - Calif[ornia] - small homes" -- on envelope front. "Operator's report -- name: Joe; 19 original photographs -- size 8x10; out of city - Amount 30-; 80 miles: transportation at 7 c[ents] - Amount 5.60; 8-1/2 hours time - regular - amount 17-; Model: Geraine Greer - amount - 10.-" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.25549/whittington-ouc17039529
title: Union Hardware Christmas catalog photos, Los Angeles, Calif., 1941

description: 43 photographs of various gifts and toys for Union Hardware Christmas catalog. "Subject: Christmas booklet, Client: Union Hardware Co., Operator's Report -- Name: Cross" -- on envelope (split between two envelopes)
DOI: 10.25549/whittington-ouc17039548
title: Wrecked Plymouth coupe, Los Angeles, Calif., 1941

description: 2 photographs of front of wrecked Plymouth coupe in repair shop. "Subject: Wrecked 1939 Ply. Coupe owner L. E. Aisner, Anna Granberg case, Client: Trinity Universal Ins. Co., Mr. Folger, Operator's Report -- Name: Vannice" -- on envelope
DOI: 10.48577/jpl.df0jmi
title: Surface deformation related to the 2019 Mw 7.1 and Mw 6.4 Ridgecrest Earthquakes in California from GPS, SAR interferometry, and SAR pixel offsets

description: Surface deformation related to the 2019 Mw 7.1 and Mw 6.4 Ridgecrest Earthquakes in California from GPS, SAR interferometry, and SAR pixel offsets
DOI: 10.25549/whittington-ouc17039549
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.6084/m9.figshare.25795107.v1
title: Source data from Identification of the modulatory Ca<sup>2+</sup> binding sites of acid-sensing ion channel 1a

description: Contains source data of the figures
DOI: 10.25549/whittington-ouc17039554
title: Union Hardware Christmas catalog photos, Los Angeles, Calif., 1941

description: 43 photographs of various gifts and toys for Union Hardware Christmas catalog. "Subject: Christmas booklet, Client: Union Hardware Co., Operator's Report -- Name: Cross" -- on envelope (split between two envelopes)
DOI: 10.25549/whittington-ouc17042437
title: Robinson's "Victory Way" dance, Los Angeles, Calif., 1942

description: 5 photographs of a crowded parking lot decorated with a banner ("Victory Way") and USA flags, with couples dancing, and 2 images of one couple dancing the jitterbug, Los Angeles, Calif., 1942 May 2. "Client: Downtown Business Men's Ass[ociatio]n; 1 ea[ch] del[iver] to L[os] A[ngeles] Times, City Desk, 1 ea[ch] to Widders, J. W. Robinson Co[mpany]; Agency: Elwood Robinson Co[many], Harry Bennett; operator's report - name: 'D[ick]' W[hittington]; 7 original photographs; in city; Amount: 18.50" - on envelope. "Victory bond dance in parking lot, about 10 publicity shots of employees & soldiers dancing, etc.; weather permitting" - on job card. "On jitterbug photo the girl is Sadie Simmons, boy is Corporal Walter Bart" - on slip of paper.
DOI: 10.25549/whittington-ouc17041512
title: Christmas book, Los Angeles, Calif., 1941

description: 69 photographs of giftware, Los Angeles, California, 1941 December 2. The items include hygiene accessories, toiletries, linens, cosmetics, candy; men's, women's and children's clothing and accessories; jewelry, preserved fruit, children's toys and games, a baby stroller, books, wallets, stationery, a travel clock, and table games. "Client: The Broadway, Bob Bol; operator's report - name: Cross, 75 original photographs - at studio to special sizes @3.50 - Amount: 262.50; pressing charge - Amount 1.50; special messenger pick up .85 (handkerchiefs) - Amount: .85;[total] Amount: 264.85" - on envelope.
DOI: 10.15468/dl.fnk65z
title: Occurrence Download

description: A dataset containing 495 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Sweden",
 "Geometry POLYGON((5.7082 55.99868,15.58782 53.80691,25.12078 58.61859,27.72068 64.98106,23.01626 66.25325,17.1236 64.77073,7.23234 59.57894,1.33968 57.94214,5.7082 55.99868))",
 "HasGeospatialIssue is false",
 "TaxonKey is Scombridae"
 ]
}

 The dataset includes 495 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0012162-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.q5wcgc
title: Occurrence Download

description: A dataset containing 1161 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Acalypha ciliata Forssk.)"
 ]
}

 The dataset includes 1161 records from 94 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0012163-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc17041503
title: Santa Claus at zoo, Los Angeles County, Calif., 1941

description: 8 photographs of a man dressed as Santa Claus putting zoo animals through their paces, including an elephant, camel, possibly an ox and miniature horse, probably in Los Angeles County, California, 1941 November 13. "Downtown Business Men's Association; Agency: Elwood Robinson Company, Harry Bennett; operator's report - name: Vannice; out of city - Amount: 20.00, miles: transportation at 7 cents - his car; 4 hours regular @ 2.00 Amount: 8.00; [total] Amount: 28.00" - on envelope. "Job: Go in his car to zoo out Ventura Boulevard, Santa Claus training animals" - on job card.
DOI: 10.25549/whittington-ouc17042590
title: Mens Wear preview of show, Los Angeles, Calif., 1942

description: 21 photographs of a hotel name, group portraits, men modeling clothing, playing, and eating, Los Angeles, California, 1942 June 4. "Subject: Mens Wear preview of show at Chapman Park [hotel]." "Client: Mens Wear Ass[ociation]; Agency: del[iver] to Lansdale Co[mpany], Phil Lansdale; operator's report - name: Cross; in city: Amount: 53.50" - on envelope.
DOI: 10.25549/whittington-ouc17041479
title: Christmas book, Los Angeles, Calif., 1941

description: 69 photographs of giftware, Los Angeles, California, 1941 December 2. The items include hygiene accessories, toiletries, linens, cosmetics, candy; men's, women's and children's clothing and accessories; jewelry, preserved fruit, children's toys and games, a baby stroller, books, wallets, stationery, a travel clock, and table games. "Client: The Broadway, Bob Bol; operator's report - name: Cross, 75 original photographs - at studio to special sizes @3.50 - Amount: 262.50; pressing charge - Amount 1.50; special messenger pick up .85 (handkerchiefs) - Amount: .85;[total] Amount: 264.85" - on envelope.
DOI: 10.25549/whittington-ouc17041535
title: School Day Luncheon groups, Los Angeles, Calif., 1941

description: 2 photographs: one of a man delivering papers to 4 women, the other of a man presenting boxes (tool chests?) to 3 young men, Los Angeles, California, 1941 November 18. "Subject: School Day Luncheon groups at Biltmore Hotel." "Client: Community Chest, Miss Plank; operator's report - name: Vannice; in city; Amount: 6.00; special messenger 85 cents" - on envelope. "Meet Cornelia Plank at Biltmore Bowl" - on job card.
DOI: 10.25549/whittington-ouc17041795
title: Mrs. W. J. Hollingworth, Mrs. Woodman, Los Angeles County, Calif., 1941

description: 7 photographs, each of one woman in or at her home, probably in Los Angeles County, California, 1941 November. "Subject: Mrs. W. J. Hollingworth, Mrs. ?, Mrs. Woodman." "Client: United China Relief; Agency: G. Elwood Robinson; 6 original photographs - size 8x10 [arrow to] Amount: 19.50" - on envelope.
DOI: 10.15468/dl.jtwen5
title: Occurrence Download

description: A dataset containing 9001 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Mecardonia procumbens (Mill.) Small)"
 ]
}

 The dataset includes 9001 records from 297 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0012165-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc17041488
title: Christmas roto, Los Angeles, Calif., 1941

description: 22 photographs of Christmas giftware, Los Angeles, California, 1941 November 4. Included are men's and women's shoes and accessories, with men's clothing, including jewelry, cosmetics, and toiletries, luggage, children's toys, leather cases and purses, and tobacco smoking equipment. "Subject: Christmas roto[gravure]." "Client: Desmond's, Westmorland; operator's report - name: Cross; original photographs - at studio; Amount: $162.50" - on envelope.
DOI: 10.25549/whittington-ouc17041383
title: 16 gift items for November inserts, Los Angeles, Calif., 1941

description: 16 photographs of giftware, including women's and children's clothing, a clock-and-calendar set, a dial phone address book, luggage, tableware, a doll, perfume, and linens, Los Angeles, California, 1941 November 3. "Client: J. W. Robinson, Miss Fromen; operator's report - name: Cross; 16 original photographs - at studio 5x7; Amount: 64.00" - on envelope. "J. W. Robinson Co[mpany], Advertising Order; 16 photos for end of November inserts (charge in Dec[ember]); Amount: 64.00" - on Robinson's purchase order.
DOI: 10.25549/whittington-ouc17041543
title: Christmas book, Los Angeles, Calif., 1941

description: 69 photographs of giftware, Los Angeles, California, 1941 December 2. The items include hygiene accessories, toiletries, linens, cosmetics, candy; men's, women's and children's clothing and accessories; jewelry, preserved fruit, children's toys and games, a baby stroller, books, wallets, stationery, a travel clock, and table games. "Client: The Broadway, Bob Bol; operator's report - name: Cross, 75 original photographs - at studio to special sizes @3.50 - Amount: 262.50; pressing charge - Amount 1.50; special messenger pick up .85 (handkerchiefs) - Amount: .85;[total] Amount: 264.85" - on envelope.
DOI: 10.15468/dl.swkr5f
title: Occurrence Download

description: A dataset containing 958 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Brazil",
 "TaxonKey is Tapirus terrestris (Linnaeus, 1758)"
 ]
}

 The dataset includes 958 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0012166-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc17042552
title: Mr. Kersey & children (superintendent of schools), Los Angeles, Calif., 1942

description: 5 photographs of a man at a desk in an office with 2 children, one dressed in traditional Chinese clothing, Los Angeles, California, 1942 April. "Client: United China Relief; Agency: Elwood Robinson; operator's report - name: Cross; in city; Amount: 13.50" - on envelope. "Meet Harry Bennett for Elwood Robinson Co[mpany], R[oo]m 707, Chamber of Com[merce] B[ui]ld[in]g, 12th & Hill; Job: United China Relief publicity; illumination used: flash" - on job card.
DOI: 10.25549/whittington-ouc17010484
title: Stairways at Everybody's Super Market, Los Angeles, Calif., 1939

description: 4 photographs of stairways at Everybody's Super Market. "Subject: Stairways at Everybody's Super Market 2111 Brooklyn Ave., Client: F. G. Ralston Co. 1007 So. Grand Ave. Mr. Smith, Operator's report -- name: Dean" -- on envelope
DOI: 10.25549/whittington-ouc17042566
title: Victory chart & new sprinkle can, Los Angeles, Calif., 1942

description: 2 photographs: one a close up of "Your personal high-primed victory -- health chart" to estimate the amount of vitamins and minerals to take each day, with Paul Bragg's picture on it; the other of new packaging permitting sprinkles, of a Bragg product, Los Angeles, California May 5. "Client: Live Food Products; operator's report - name: D[ick] W[hittington]; 2 original photographs - at studio; Amount: 12.00; Samuely" - on envelope.
DOI: 10.25549/whittington-ouc17042570
title: Bus #815, bus #385, Los Angeles, Calif., 1941

description: 3 photographs of damage to 2 Greyhound buses in a garage, Los Angeles, California, 1941 December 27. "Client: bill Pacific Greyhound Lines, Mr. Sabin; Agency: deliver [to] Western Adjusting Bureau, Mr. Gaffney or Mr. Collard, 621 South Hope Street; operator's report - name: Brown; in city: Amount: 8.50" - on envelope. "Meet Mr. Collard at Greyhound Depot - 7th & Decatur; Job: all damage to bus #815, also 385; Gaffney" - on job card.
DOI: 10.25549/whittington-ouc17010509
title: Bob Belasco, orchestra, singers, Los Angeles, Calif., 1939

description: 9 photographs of Bob Belasco with an orchestra and singers. "Subject: Bob Belasco and orchestra Singers etc., Client: Mr. M. Schaeffer 360 So. Alvarado, Operator's Report -- Name: Jack" -- on envelope
DOI: 10.25549/whittington-ouc12975961
title: Valley & Pasadena properties publicity, Los Angeles County, 1936

description: 19 photographs of a model (Geraine Greer) either inside or outside new homes in the San Fernando Valley, Los Angeles County, California, 1936 February 29. In images 18 and 19 (negatives 1 and 2) a woman tends chickens. "Client: California Bank; Agency: Geo[rge] Stiller; 2nd envelope; Classifications: A - birds etc - H - Women L - Calif[ornia] - small homes" -- on envelope front. "Operator's report -- name: Joe; 19 original photographs -- size 8x10; out of city - Amount 30-; 80 miles: transportation at 7 c[ents] - Amount 5.60; 8-1/2 hours time - regular - amount 17-; Model: Geraine Greer - amount - 10.-" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.25549/whittington-ouc12975964
title: Valley & Pasadena properties publicity, Los Angeles County, 1936

description: 19 photographs of a model (Geraine Greer) either inside or outside new homes in the San Fernando Valley, Los Angeles County, California, 1936 February 29. In images 18 and 19 (negatives 1 and 2) a woman tends chickens. "Client: California Bank; Agency: Geo[rge] Stiller; 2nd envelope; Classifications: A - birds etc - H - Women L - Calif[ornia] - small homes" -- on envelope front. "Operator's report -- name: Joe; 19 original photographs -- size 8x10; out of city - Amount 30-; 80 miles: transportation at 7 c[ents] - Amount 5.60; 8-1/2 hours time - regular - amount 17-; Model: Geraine Greer - amount - 10.-" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.25549/whittington-ouc12975967
title: Valley & Pasadena properties publicity, Los Angeles County, 1936

description: 19 photographs of a model (Geraine Greer) either inside or outside new homes in the San Fernando Valley, Los Angeles County, California, 1936 February 29. In images 18 and 19 (negatives 1 and 2) a woman tends chickens. "Client: California Bank; Agency: Geo[rge] Stiller; 2nd envelope; Classifications: A - birds etc - H - Women L - Calif[ornia] - small homes" -- on envelope front. "Operator's report -- name: Joe; 19 original photographs -- size 8x10; out of city - Amount 30-; 80 miles: transportation at 7 c[ents] - Amount 5.60; 8-1/2 hours time - regular - amount 17-; Model: Geraine Greer - amount - 10.-" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.25549/whittington-ouc12975969
title: Stairs in Fujiyama Oriental Store, Los Angeles, California, 1936

description: 2 photographs of stairs in the Fujiyama Oriental Store from different angles, Los Angeles, California, 1936 March 3. "Subject: Stairs in Fujiyama Oriental Store, #PL6463 - Saji Trading Co[mpany]." "Client: Hartford Indemnity Co[mpany], Mr. Anderson" -- on envelope front. "Operator's report, name: Joe; 2 original photographs -- size 8x10; in city; Amount: 5.00" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.25549/whittington-ouc12975972
title: Blast in quarry #2, Los Angeles County, Calif., 1936

description: 8 photographs of a blast and resulting pile of rock in quarry #2, Los Angeles County, California, 1936 March 3. "Client: Cha[rles] Hopper, Mr. Gilliland; Classifications: I Construction" -- on envelope front. Images 1,2, and 3 have text reading "Quarry: Sandstone No. 2; Hole Dimensions: 5 [feet]--Tunnel 45 [feet] --Cross Cut, 5 [feet]; Am[oun]t & kind Explosive: 8845 Lbs of Halifax 20%; Time: 10:40 A.M., March 3, 1936." The other images have dates. "Operator's report, name: Dean; 8 original photographs -- size: 8x10; ext[eriors]; out of city; Amount: 12.00; 50 miles transportation at 7 c[ents] - Amount: 3.00; 4 hours time - Amount: 8.00; Printing on neg[ative]s: 4.00" -- on envelope back. The negative envelope indicates that the Whittington studio fulfilled one print order.
DOI: 10.15468/dl.urrw4r
title: Occurrence Download

description: A dataset containing 3328 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Acalypha indica L.)"
 ]
}

 The dataset includes 3328 records from 157 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0012168-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25549/whittington-ouc17041493
title: Rear walk and depression in walk, Los Angeles, Calif., 1941

description: 2 photographs of the pavement at the back of a building, one a close up, Los Angeles, California, 1941 November 4. "Subject: Rear walk and depression in walk at rear of Wilshire Grand Apartments - 1127 Wilshire Boulevard." "Client: Maryland Casualty, Mr. Mathews; operator's report - name: Vannice; in city; Amount: 5.00" - on envelope. "Meet Manager Mrs. Broyhes; Job: very small depression in walk to rear entrance of apartment; man sprained ankle walking in to apartment" - on job card.
DOI: 10.25549/whittington-ouc17041807
title: Girls and paper (sic) mâché horses, Los Angeles, Calif., 1941

description: 7 photographs of women in bathing suits pretending to ride and feed horse puppets wearing skirts, in one with a woman dressed as a drum majorette, Los Angeles, California, 1941 November 14. "Client: Downtown Business men's Association; Agency: J. Elwood Robinson; operator's report - name: Joe; 7 original photographs - at studio; Amount: 27.50" - on envelope.
DOI: 10.25549/whittington-ouc17041787
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whittington-ouc17042137
title: Defense meeting of Oil Industry, Los Angeles, Calif., 1941

description: 7 photographs: 6 with different speakers at a lectern with a microphone, and one of the audience, Los Angeles, California, 1941 December 17. "Subject: Defense meeting of oil industry at Biltmore Hotel." "Client: Petroleum World, 412 West 6th Street, Mr. Palmer; operator's report - name: Vannice; in city; Amount: 24.00" - on envelope. "At Biltmore Ballroom - Press table; Job: 4x5s of speaker & 8x10 [underlined] Landflash of crowd" - on job card.
DOI: 10.25549/whittington-ouc17041549
title: Elevator cover on sidewalk, Los Angeles, Calif., 1941

description: 2 photographs of a sidewalk elevator from different angles, Los Angeles, California, 1941 November 4. "Subject: Elevator cover on sidewalk in front of Cutts Building, Hill Street south of 7th." "Client: Jennings & Belcher, 808 Security Building, Mr. Fargo; operator's report - name: Vannice; in city: Amount: 5.00" - on envelope. "On east side of Hill Street - between 7th Street & entrance to Cutts Building, 1st sidewalk elevator south of 7th Street. Job: try to show elevation to projections on cover - do not emphasize that doors do not meet" - on job card.
DOI: 10.25549/whit-c170-104237
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whittington-ouc17039179
title: Desk accessories, gifts for catalog, 1941

description: 8 photographs of ledgers, a notebook, and desk accessories for holiday catalog. "Subject: 'accents' page, Client: J. W. Robinson" -- on envelope
DOI: 10.25549/whittington-ouc17010001
title: Various curtains, Los Angeles, Calif., 1939

description: 14 photographs of various curtains from Sunshine Curtain Co.. "Subject: Various curtains, Client: Sunshine Curtain Co. 917 So. Maple, Mr. Dawson, Operator's report -- Name: Dean" -- on envelope
DOI: 10.25549/whit-c170-104211
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whit-c170-104110
title: Dick Whittington Photography Collection, 1924-1987
DOI: 10.25549/whittington-ouc17039266
title: Images for Union Hardware Christmas booklet, Los Angeles, Calif., 1941

description: 17 photographs of household wares and appliances for Union Hardware Christmas booklet. "Subject: Second Booklet, Client: Union Hardware, Operator's Report -- Name: Cross" -- on envelope