

ADVERTISEMENTS. í 

NOTICHYJ: 

Notices for scientific societies and private individuals inserted under this head free of charge. 
For business houses, two cents per word. 

INERALOGY, — Course conducted b 
i correspondence. First collection and 
book $1. Postage cA cents. Address 
GUSTAVE GUTTENBERG, 
Central atA School, Pittsburgh, Pa. 

ANTED— To correspond with concholo- 
ar 
ign. rs. Falloon, Toda Ashton Vic- 
arage, Bristol, p and 

ANTED—Position in Academy, Normal 
or High School, as teacher of the Natura} 
Sciences and Modern Languages. Latin ipo 
in addition, if necessary. Address G., box 44 
Hanover, N. H. 

COLLEGE PROFESSOR of Natural 
iy ea and German, of four years ex- 
sist ictal Biological training received 
at the Daiveahies of Leipzig and Bonn, Ger- 
many, is open for a position ina college. Good 
references. 
Address, C., Box 136, New Berlin, Pa 

R EXCH Cte ae, 
ENC 
condition for birding; 
lso, Morris Typewriter. If you have a 
era, or anything else to offer, 
E.R. CH HADBOURN, LEWISTON, ME. 



OR EXCHANGE—Thirty species of Union- 
ide from Spoon river, Ill.; the finest in the 
world. 
Fifty species of birds’ eggs 
stone and flint implements. 
minerals, fossils, curios and scientific literatur re, 
Dr. W. S. RERORE. BERNADOTTE, ILL. 


WANTED—als » works o on Paleontology, 

———= 

OHN NRE S 

OR SALE.—Beautiful sets of Fossil Plants 
from the Dakota Group Cretaceous, On 
‘receipt of $3. oo I ym POs prape; to any 
addressin Europe 
and varieties of Dakota Plants. Send 5 “gents 
for ane illustrating the set. will 
al the figures. CHAS. H. STERNBERG, 
Box 60, Lawrence, Kans. 



INERALS iyl EXCHANGE for others. 
JOHN HOLL. ROLLO, 
Wilmington, Delaware. 

OLUMES I., IL, IIL, and IV., of THE 
AMERICAN NATURALIST, in first-class con- 
dition, bound in half Morocco, forsale. Price 
$16 Address GEO. W. MACK 
25 Congress St., Boston, Mass. 
ANTED—For dissection ane microscopic 
work, Polyps, Jelly-fish, or other Hydro- 
zoa, Actinozoa, and ems lore Echinoder- 
mata and Mollusca. exchange given, 
J. A. Leighton, Trinity College, Toronto, Can. 

ANTED—Bird skins representing species 
not in my collection. 
offered. Send lists. F. H. CA 
Providence, R. I. 



OR f Loui 
F iana Unionide, TRIR which are Unios 
rutersvillenis, 
castaneus, 1 
us, bai nus, cerinus, cornutus, geometricus, 
hydianus, trapezoi 
asperrimus, ane anodonta opace. Have other 

Would like other "o of shells, fossils, and 
scientific literature in retu 
T. WAY m iein VAUGHAN, 
MT. LEBANON, ba. 

New York, Kingston-on-Hudson. 
Gotven Hitt Scuoot, 
A Preparatory School for Boys. 
$450 Per Annum. 

l e i fossils of the — Epoch. Address M. D. f 


a 
JOHN M. |. CROSS, ; A.M., me a - 

