The sun. [volume] (New York [N.Y.]) 1833-1916, 1897-11-21

Astronomers everywhere are interested IN the pro-
spective publication OF the great map Of the stars, now
well under way-thRt Is, q Photographic chart Of the
whole heavens has now for some time been in process
Of construction by an association OF observatories in
,nno,,.r, ~" au.nE Countries "a .ne w'ro. ~
the sties in spc,,on. ~. s.o,,o, ,o,rr .,.,.r.d 20
each oh,.rv,,or,. -. nS...n. D.n.os-.as. lii
? be tthen NJ ..ch y, ~. on..-~s. -. ,o,., q,
nftv fo,, ,h,r,.., -, Ss. r.-,.. No.
win he o,.,on ,hnn,..s - .-..,-o
| tbop,ans ,or tho .n,,.s ,a,na-. Tso..- 80 oor,,
po.ed n, ,h... ,r,.u 80. ii, t. -. ,s,,,x
| millions NJ s,o-, -, III, - ,.u,,o,. IN ~ cats.
,,gnod an, n"m.S. 80 nv
IN thu oIov.n,h u.na ..,o.
oro ohIs,, =, -
Ia % ~ tm, ~.
an, now .o,h., 80 -. ~ ~
do,oo,oa .n, 10y aug ~ NMs :. :.
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new method OF shot firing in m,ne,. sayn the Cal.
| ifornin Scientific Pres, hns hecn evolved nv n working
miner, the arrangement consistino IN the use OF a
hollow brass or conner needle. 10 be inserted IN the
cartridge containing the charge. The nhot IA rammed
in the usual way. bit tho detonator IA not placed in
the charge until the tanning ia completed, then. by
means OF a thin conner rod. t,pped with hard paper.
the detonator ia n.ssed nm IN. hoi,ov neodle and
placed in the position rsou,red In the charge and
secured BY n spripp. sbou,d n detonator prove de.
tecuve and the shot fall to explode. the faulty deto-
major can be Withdrawn and another substituted
Thus' oy this device, the element OF danger 10 almost
entirely removed, no second hole where . faulty
onarSo occurs being required; the mole ID rammoo o.
fore the dangerous d%etonator Is inserted.
-
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a., ~. -. -. 30 Az.
N,L
oo', usn'' ). 'no" nv - e'e
W " NV ""d oneiour'h pou"u' a,o"uupos pe'
nu,"I ..E
-, op"" ~ "Np AnN .s 49,.
m ps '""" no - Nn.H
,r,.toa. ,r,,har , ,.n.uo .,ranr,h q. r.,r,rod y,
$3.50 80, " e' nn.s,s.
p"'"' .' ""p "N
- NJ ".ns ~ -, -,
BILE to mako them, and not liable to be seriously
affected by being soaked continuously for twenty.
four hours In fresh water and then thoroughly W ashed
In water with which Is combined q good grade Of
laundry soap. Every stripe and device on the naSs
made Of this superb material arc measured with the
most perfect Reometricsl accuracy, and the stars are
nut on 30 carefully and evenly that when the flag Is
held up 10 the light the stars. which are made Of mus.
lin and put on both sides, appear to be q part Of the
fabric. The starr are cut with chisels out of bleached
muslin laid thirty thicknesses together on a large
omen block.
"
Inc lack OF emeiency IN 'he ordinary oeits en-
pio'eu" Il Wv,
p"a.'-'u'h iAeA oens ~. p,"oipA"y me N'
eu'nionS oe."oeh Il :" II enppAs'
-' o'A'ne W oe en'i'ei9 ihA ~ Il pneu
mh'' pui'es' u TINS SIMPLY W u pef'oiA
lions III srouno n iace vi u puhe'' ihese per
toratohs are regularly piacea in rows Arailei'o 'h'
AXIS the perpenuicuiar position Q me periora'o"
"eA'n U efha y" u - ="
oe' very e'oseiy grips inc iaeeoi III quincy an
opera'es' 'hereiore' "'nou' III - ''ehuin pun
ieye' "h'ch permit an nj e"sn'on oe'ween IL 'ei
anu me race n \ o. MS puney' heiu' en
e'es u ~ VI " ""i an' ioosoi e'' WV"
ordinary pulley 10 reckoned Us being equivalent to
loss of about 10 per cent. in power. A more uniform
speed. too, can be obtained between the driver an
the driven element. which is an important feature 1
high speed work.
such n u, ,rmsnss p,ac. a, vort N a the floating ora,
IN, doct roc.n,Iv cors,rrc,sd AT wa,,send on. Tvp
,or a n, u,xara ia ipstlv rapted 4. n snec,,
, ach,.vemep, In nava, nocban,cs II ia bu,,t en,irel
ot.,.., h.v,ro a ,en,,h ~ ano ,.s, with aides =
ali. 40 Zoo, h,,h ,h.se r.o,,.t,n,t tho descent of tr
nontoors below tho watsr and a,.o a1oro,ny Z,
n.c..s.rv s,ab,,,,v Then tbere r smov ah,e ca,sson
or oa,e. for use when reou,red IN increase the rftir
mower az III. dock. The pontoons. nve in number n,
a,,o h,,,t NJ steel and are va,er.t,pbt boxes 70 70,
deem strengthened bv lattice eirders and divided I'm,
r four separate vater.tixht compartments. The upp.
v part of the side walls is divided by a water.tight dec
at a height OF so feet, and the chamber above this, INF
Q which water is never admitted, serves as engine, boile
I dynamo, and motor rooms. This floating gravin
dock is worked in the same manner as any ordinar
floating dock. It Is lowered, in the first place. b
9 lon, IN ~ rnr,o,, no,,,,on nv r.ouI.t,na rho omon1
I a,S.....srm,a, go ~. AGO., .a..s-.msa.
-. ~. :. s,m,,.n, aan,h =, ,.,.r - ,ha 10.
J. ~. ~. - q. 80. :, a.. .s,os.s,.., 49,
4 =,
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y - ~" 80. 80 ~ $50 ,n~.S
y ~
: .Sn -, 10 y. ~,