The daily sentinel., 1910-03-22

from the paholOgist charge disease investigation
highest authority in Amerca-M. B
Ny contentious need no further support.
IL HAMILTON
UNITED STATES DEPARTMENT OF AGRICULTURE
Bureau of Plant Industry Fruit Disease Investigation
MI James L. Hamilton Grand Junction Colo
Dear Sr-Mr. H P Gould pomoogist in this bureau
fered letter of January 80 about possible injury
the heating of orchards the effects of low tempea
Whatever be the advantages disadvantages
systems orchard heating do not think there will be question
oil are used
PHUR great COAL presence
materials SULPHUR which would voa fire
of arsenic SULPHUR this might deposit Ondense the
leaves fruit and trouble
rather surprised that the heat itself has made
very still time the fire be placed to be harmless
As understand there could be permanent damage
anything carry
the fruit crop the second year. Yours very truly
Pathologst in Charge Fruit Disease investigation
COLLEGE OF AGRICULTURE STATION.
Berkeley Benz Ide Wheeler, President
Ralph E. smith Plant Pathoogt
Plant Pathology Southern California Laboratory,
Whittier, Cal, February Z, 1910;
Hamilton, 400 Main St, Grand Junction Colo
Dear Sir have your letter of the 29h last referred from
Regarding the effects of burning oil and orchard frost
protection would that have heard trouble from
this The MAJORITY OF OUR GROWERS
USE CRUDE OIL for this and that there no
danger to the coming the
Some trouble arises particularly with lemons
which the fruit which has be removed before ship
smudge just before picking the fruit have heard of
damage to the vitality of the tree by deposition Of SCOT upon the o
age Yours very truly,
(signed) RALPH E, SMITH,
Grand Junction, Colo, December 80, 1903
The Hamilton Reservoir Heater Company,
Grand Junction. Colo
Gentlemen Replying your viii that ten
orchard Grand Junction covered with
heaters the spring of 1909 leaving unprotected
ON ACRES HEATED HAD GOOD CROP OF THE FINEST
FRUIT; unprotected had practically nothing
The demo on M
beneficial effects the smudgng With the Hamilton Res
heater simple operation and adjustment to the conditions of the
weather. enabling produce great or small degree OF heat as
the temperature may require.
On the first evening the heaters used strong wind pre-
vailed with pronounced fall temperature of less than 27 de-
gre able, Notwithstanding the strong wind prevailing to
maintain temperature III orchard above reezn on th Sec
evening conditions favorable By this mean there
this evening and able maintain temper
40 degrees inside the heated while outside the Or
the thermometer registered 81 degrees after short eX
posure. -
only enables adjust the heat to the
weather but entirely close the reservoir shut off
all heat and save all material unconsumed at any time
IN. LOGAN
Fruta Color December 27, 1903
Mr.. L Hamilton, Grand Junction Colo
Dear SrThe Hamilton Reservoir Orchard Heater IN my es
heater the market account OF
being easily regulated and of sufficient capacity to bum all
night without refing CROP 80 apples and
wb pgt tbs e results sp HAD FULL CROP AND REQUIRED SOME
THINNING TREES ARE IN AS HEALTHY CONDITION A AS
EVER SAW THEM AND THE FRUIT BUDS HAVE SET VERY
HEAVY NEXT YEAR, so AM SURE THERE WAS NO DAM
AGE TO THE TREES.
wish you best success heaters and the
growers them first the irereguatng feature Of great
and believe the that pulled through when the
temperature low as 10 above
refer to about this heater as Will De saa
to tell about what it has done for
~'' ~ ~ Respectfully; S;v,,,