THE YOUNG SCIENTIST. 
25 
] auires instructions. It gives full directions for 
the performance of such operations as are re- 
quired to illustrate chemical principles, and also 
gives directions for analyses. Students who de- 
sire to get a book which will help them to a know- 
ledge of practical chemistry, cannot select a 
better. 
The Boston Journal of Chemistry. Devoted 
to the Science of Home Life, the Arts, Agricul- 
ture and Medicine. $1.00 per year. Boston 
Journal of Chemistry Co. 
This able and interesting journal is now in its 
fourteenth year, and every season it grows better 
and better. To those who wish a wide awake jour- 
nal which gives a view of recent scientific pro- 
gress, without making any heavy demands upon 
purse or time, we would recommend the Boston 
Journal of Chemistry. 
Astronomy for Amateurs. 
BY BEKLIN H. WEIGHT. 
(Calculated for the Latitude of New York City.) 
THE PLANETS— MAECH, 1880. 
D. H. M. 
Mercury sets 7 7 23 evening 
10 7 33 
(10° N, of sunset point at close of ev'g. Twilight 
Ih. 30m. after sunset.) 
Venus rises 
10 
5 
5 
30 
4 
53 
Mars sets 
10 
0 
59 
30 
0 
33 
Jupiter 
invisible 
Saturn sets 
10 
7 
58 
30 
6 
52 
Uranus in Meridian 
10 
11 
17 
« <( 
30 
9 
55 
EPHEMEEIDES OF THE PEINCIPAIi STAES AND 
CLUSTEES, MAECH 21, 1880. 
H. 
M. 
Alpha Andromedse ( Alpheratz) sets 
7 
54 
eve. 
Omicron Ceti (Mira) sets 
8 
2 
Beta Persei (Algol) " 
0 
13 morn. 
Eta Tauri Alcyone or Light of 
Pleiades) sets 
11 
9 
eve. 
A?p/ia Tauri (Aldebaran) sets 
11 
27 
Alpha AurigSB (Capella) " 
3 
20 morn. 
Beta Orionis (Kigel) " 
10 
40 
eve. 
Alpha Orionis (Betelguese) " 
0 
18 morn. 
Alpha Canis Majoris (Sirius or Dog 
Star) sets 
11 
41 
eve. 
Alpha Canis Minoris(Procyon) sets 
1 
56 morn. 
Alpha Leonis (Eegulus) in Merid. 
10 
2 
eve. 
Alpha Virginis (Spica) rises 
7 
56 
(( 
Alpha Bootis (Arcturus) " 
6 
59 
Alpha Scorpionis (Antares) rises 
0 
6 morn. 
Alpha Lyrae (Vega) rises 
9 
39 
eve. 
Alpha Aquillae (Altair) rises 
1 
19 morn. 
Alpha Cygni (Deneb) rises 
10 
42 
eve. 
Alpha Pisces Australis(Fomaliiaut) invisible 
NEAE APPEOACH OF THE MOON TO STAES AND 
PLANETS, ETC. 
March 3. Moon near Antares. 
" 4. " in Milky Way. 
" 5. " 2° IS. of "Milk-Maids' Dipper." 
" 8. " 3^ South of Venus. 
" 9. " 10" South A in Aquarius. 
" 10. Mercury 18° 22' E. of Sun ( Gr. Elong.) 
" 11. Moon 6° North of Jupiter. 
" 12. " 3° North of Mercury. 
" 12. " 8° North of Saturn. 
" 15. Jupiter in conj. Sun (Invisible). 
" 15. Moon a trifle North of Pleiades. 
" 16. " North of Hyades. 
" 17. " very close to and North of Mars. 
" 18. " 15° North of Betelguese. 
" 20. " Midway bet. Castor and Procyon. 
" 20. Sun Enters the Sign Aries (Constella- 
tion Pisces) and Spring commences- 
" 23. Moon 5° South of Kegulus. 
" 24. " 5° " Uranus. 
" 26. " very close to Spica. 
" 28. Mercury, inferior conj. with Sun. 
" 28. Moon within the Square of Libra. 
GEOGEAPHY OF THE MOON. 
We herewith begin a series, as indicated by 
the heading, upon the natural divisions or sur- 
face of our satellite. We shall confine our ob- 
servations to a class of objects which may be 
easily seen with small telescopes in the hands 
of amateurs. 
The Moon is the easiest of all celestial objects, 
being only about 240,000 miles distant, and sub- 
tending an angle of about one-half of a degree. 
Ever since the time of Galileo, who first dis- 
covered the mountains and valleys on its surface, 
the Moon has been the object of unceasing ob- 
servation. Amateurs were, however, debarred 
from a careful and comprehensive study of 
lunar geography by the lack of a good map, 
adapted to their purposes. This want was sup- 
plied in 1859 by the Eev. T. W. Webb, who re- 
duced "Mappa Selenographica," which was 
originally issued in four large sheets, and 
omitted a vast amount of detail, such as would 
only tend to confuse and discourage the be- 
ginner. The work with which that map was 
issued ("Celestial Objects for Common Tele- 
scopes ") has long since been out of print, and 
is now costly and hard to procure. 
The Editor has prepared the way for a rich 
feast for the student of Astronomy, by faith- 
fully reproducing this map in full. 
In order to avoid crowding on the map, each 
object is numbered, and in referring to them we 
will give the name by which it is known, and in 
parentheses the number by which all maybe, 
in time, identified and observed under the most 
favorable circumstances. 
