ADVERTISEMENTS. 
ttt 
NOTICES. 
Notices for scientific societies and private individuals inserted under this head Jree of charge. 
y business houses, two cents per word. 
MNERALocx. — Course conducted by 
First collection and 
ddress 
AVE GUTTENBERG, 
coral ‘High School, Pittsburgh, Pa. 
OV pas ED—To correspond with concholo- 
Mrs, Falloon, Long Ashton Vic- 
arage, Bristol, England 
No TED— Position in Academy, Normal 
ool, as teacher of the Natural 
ages. Latin taught 
in addition, if necessary. Address G., box 441, 
Hanover, N. H. 
me i PROFESSOR of Natural 
many, is open for a position in a college. 
references, - 
Address, C., Box 136, New Berlin, Pa. 
| OR SALE.—Beautiful sets of Fossil Plants 
from the Dakota Group Cretaceous, On 
Sete of $3.00 I he forward, prepaid, to any 
dress in E 
| ast varieties of Dakota Plants. Send 5 “cents 
for gh fo ae set. The — will 
CHAS. H. STERN 
i Ox 60, i tga Kans. 
JE i ora aA s works on Palæontology, 
d other A giving plates which show 
fossils of the Niaga: . Address M. D. 
Sullivan, St. Ignatius 1 Coles: Chicago, Ill. 
OLUMES L, Er et ~~ SY 3 Pleas 
dition, gere in half Morocco, for sale. Price 
$16.00. Address GEO. W. MACKAY, 
25 Congress St, Boston, Mass. 
pee 
wW 
= 
ANTED—For dissection and microscopic 
work, Polyps, Jelly-fish, or other Hydro- 
zoa, Actinozoa, and Ctenophora ; also Echinoder- 
ta and Mollusca. or ex given. 
J. A. Leighton, Trinity College, Toronto, Can. 
OR vcd ular alge e species of Union- 
ide fr p er, Ill. ; the finest in the 
OR EXCHANGE—14 Volumes 883 world. Fine abies pier other land shells 
1889) AMERICAN JOURNAL OF SCI Fifty species of eggs in full sets; Indian 
10 volumes (1 1889) AMERICAN Rane stone atid flint im ts. ANTED, shells 
ALIST; 21 volumes (1879-1890) ENGLISH ME- poor a fossils, curios and scientific litera 
TANIC; all in good condition for binding; Dr. W. S. STRODE, BERNADOTTE, ILL. 
also, Morris Typewriter. If you have a ahs 88 
Microscope, or an else to offer, INERALS TO EXCHANGE for others, 
please send full description. JOHN etn ROLLO, 
E. R. CHADBOURN, LEWISTON, ME. mington, Delaware. 
First-Class Histological Mounts ESTN : 
at European Prices. Gorpen Hitt Scuoot, 
a A Preparatory School for Boys. 
WM. N: Beces, M.D. EELO Pue A 
Instructor of of Histology in the St. Louis Med. College. 
2207 Sidney St., St. Louis, Mo. 
JOHN M. CROSS, A.M., Principal. 
