THE YOUNG SCIENTIST. 
43 
; THE 
Young Scientist. 
A Practical Journal for Amateurs. 
With which has been incorporated 
' THE INDUSTEIAL MONTHLY," 
" THE TECHNOLOGIST." AND 
^ "HOME ARTS." 
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postage stamps received at full value for sums 
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are of no use to us, but Canadian silver and frac- 
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Correction. 
BY an unfortunate accident Fig. 5, page 
20, in our last issue was turned upside 
down. As we shall have this error cor- 
rected in the electrotype plate, future im- 
pressions will be correct. To find out 
whether the cut is right siie up or not, 
compare it with Figures 1 and 3, which 
'ire correct in all editions of tlie Young 
Scientist. 
Workshop Receipts. 
n^HIS is a closely printed volume of 450 
J- double column pages, forming a com- 
plete encyclopaedia of practical informa- 
tion for the amateur and the mechanic. 
It is too well known to need commend- 
ation. We have a few copies on hand 
which we offer as premiums to those who 
send us ten new subscribers to the Young 
Scientist and five dollars. Almost any 
boy can secure this number of new names 
by a little effort among his friends. 
Astronomy for April. 
SOME of our readers may miss the 
astronomical article in this number. 
The astronomy for March will be found 
in the February number, and as the April 
number will go to press early in March it 
will be in ample time to place in the hands 
of all our readers the astronomy for 
April. ^ ^ ^ 
Postage Stamps. 
WE again call the attention of our sul)- 
scribers to the fact, that while we take 
postage stamps of small denominations 
at full value, those of higher denomina- 
tions are of no use whatever to us. We 
cannot sell them, except at a very great 
loss, and the post office will not exchange 
them for smaller denominations. There- 
fore, please do not send them. 
Who Wants a Rifle? 
WE have a very fine little Flobert rifle, 
the bore of which has been rifled so 
that it shoots with great accuracy. (The 
ordinary Flobert rifles are all smootli 
bores.) It is just the thing for small game 
or target practice, and we will give it to 
the first that sends us a club of fifty sub- 
scribers to the Young Scientist. Kemem- 
ber, this weapon will be given to the first 
that completes a club of fifty ; after that, 
those wlio wish a rifle as a premium, will 
have to be satisfied with the ordinary 
weapon. 
CflorrcsiJonbence. 
Snow Crystals. 
Ed. Young Scientist— For the past two years 
I have been making crystals a study, and have 
made observations on nearly all the snow 
storms, but the storm of February 4, in this 
part of Pennsylvania, was something unusual. 
The storm from beginning to end was noticeably 
very fine. Close examination with microscope 
revealed that these small flakes were all solid 
crystals, six sided prisms, with a hexagon plate 
on each end, giving them the appearance of a 
dumb-bell. Althou^^h this form of crystal is 
nothing new, still in the two years of my ob- 
servation I have never before discovered one 
until then, when they seem to come all at once. 
W. T. Alan. 
Greenville, Pa., Feb. 14th, 1882. 
