THE YOUNG SCIENTIST. 
75 
: catch is at the bottom to keep the curtain 
down, and a thread is attached to this 
catch so as to release the curtain at the 
proper moment. The frame is fastened 
to the front of the box to give it a finish. 
After the assistant has collected the 
watches, he places his hand over them to 
guard them, and then as he is returning 
to the stage, purposely falls, and at the 
same moment drops the plate together 
with the brass cases, wheels, etc., which 
he has held under the plate in his hand, 
whilst the borrowed watches he carefully 
secures and secretes in one of his pockets. 
Pretending to be hurt, he limps off the 
stage, and immediately fastens the plate 
and watches to the back or rather bot- 
tom of the box, pulls down the curtain, 
fastens the catch, and then carries the 
frame on to the stage and hangs it to the 
cords. 
When the performer fires the gun the 
thread is pulled by the assistant, up flies 
the curtain, and there hang the watches 
and plate. 
The broken piece, is merely a little piece 
of black silk fastened on to the plate, and 
this is pulled away at the moment the 
performer pretends to throw the bit of 
plate that he has picked up. 
Removal. 
FOR many years our quarters at 176 
Broadway have been too small for 
our business, and we have been in many 
respects subjected to great inconvenience 
thereby. The difficulty and annoyance 
of moving at a busy season of the year, 
has hitherto prevented us from making a 
change, but at last we find ourselves com- 
pelled to secure more room and additional 
facilities. We have therefore leased very 
large and commodious premises at No. 
14 Dey street, about one block from our 
old stand. Our office and reception rooms 
will be situated on the second floor (the 
one immediately over the store), and we 
propose to have them fitted up in very 
attractive style. 
Please remember the change of address 
after the first of May. 
The Heavens for May. 
by berlin h. weight. 
Ephemeeides of Planets.— Meeouex 
rising- : 
May 12— 3h. 57m. morning. 
" 15-3h. 52m. 
" 18— 3h. 49m. 
" 21— 3h. 45m. 
Venus setting: 
May 15 — loh. 14m. evening. 
" 25— lOh. 23m. 
June 10— lOh. 24m. " 
Maes rising : ^ 
May 15— Ih, 55m. morning. 
" 20— Ih. 45m. 
" 25— Ih. 35m. 
" 30— Ih. 24m. " 
June 10— Oh. 59m. " 
Jupitee rising- 
May 15— Ih. 44m. morning. 
" 25— Ih. 9m. 
June 10— Oh. 9m. " 
SATELLITES OF JUPITEE. 
Satellite I. 
D. 
H. 
M. 
Transit (shad.j begins 
3 
3 
49 morningf 
Occultation ends 
4 
4 
32 
Eclipse begins 
11 
2 
54 
Transit ends 
12 
3 
50 
11 
" begins 
19 
3 
27 
e( 
" ends (shad.) 
19 
4 
26 
Occultation ends 
20 
2 
55 
Transit (shad) begins 
26 
4 
0 
(I 
" ends 
28 
2 
10 
Satellite II. 
Transit begins 
8 
3 
3 
<e 
" (shad) ends 
8 
3 
23 
it 
" (shad) begins 
15 
3 
3 
Occultation ends 
17 
3 
46 
(C 
Eclipse begins 
31 
3 
24 
te 
Satellite III, 
Transit ends 
2 
3 
25 
(C 
" begins 
9 
4 
1 
" (shad.) begins 
16 
2 
47 
cc 
Occultation begins 
27 
2 
13 
te 
Satuen rising : 
May 10— 3h. 24m. morning. 
" 20— 2h. 48m. " 
" 30— 2h. 11m. 
June 10— Ih. 30m. 
Ueanus setting- 
May 15— Ih. 24m. morning. 
" 25— Oh. 44m. 
June 10— llh. 38m.evening. 
Kemaeks.— Meecuey will be brightest as a 
morning star May 15-18, but he is so far south 
of the sun, and the twilight begins so early, that 
we think it will be useless to look for him at ' 
this elongation. 
