

ADVERTISEMENTS. 





NOT Ges, 
Notices for scientific societies and private individuals inserted under this head free of charge. 
For business houses, two cents per word. 































INERALOGY.— Course conducted by 
aa 1 correspondence pee collection and 
k book ği. Address 
Postage 25 cents 
GUSTAVE GUTTENBER G; 
_ Central High School, Pittsburgh, Pa. 
ANTED—To correspond with conch olo- 

` eign. Address Mrs. Falloon, Long Ashton Vic- 
arage, Bristol, Englan nd. 
pek ED—Position in Academy, Normal 
or High School, as teacher of the Naturat 
Sciences and Modern Languages. Latin eA 
in addition, if necessary. Address G., box 44 
Hanover, N. H. 

COLLEGE PROFESSOR of Natural 
= Sciences and German, of four years ex- 
perience and specia i Bicloptest training received 
at the Universities of Leipzig and Bonn, iad 
many, is open for a position in a college. Goo 
references, 
__ Address, C., Box 136, New Berlin, Pa. 

OR EXCHAN G E.—14 Volumes ae 
f you have a good 
Camera, or psn: else to offer, 
please ee full descriptio; 
E. R. CH ADBOURN, LEWISTON, ME. 
OR SALE.—Beautiful sets of Fossil Plants 
from the Dakota Group Cretaceous. On 
receipt of $3- oo I pi forward, pepan to any 
addressin E 

and varie a of Dakota Plants. Send 5 ce cents 
for plate meni a set. The specimens will 
equal the figures. CHAS, H. STERNBERG, 
PO ad 6o, Lawrence, Kans. 

INERALS TO EXCHANGE for others. 
JOHN HOLL. ROLLO, 
Wilmington, Delaware. 
OLUMES | 1., f1., 111., and TV., of THE 
AMERICAN NATURALIST, in first-class con- 
dition, TURA in half Morocco, for sale. Price 
$16.00, Ad Pa Saer W. MACKAY, 
ongress St., Boston, Mass. 
ANT ED—For ERRE and microscopic 
work, Polyps, Jelly-f -fish, or eee fe io 
zoa, Actinozoa hinoder- 
mata and Mol Cash o or ae given. 
‘J, Ae pi sy “Trinity College, Toronto, Can. 
GRADUATE of a scientific school wishes 
a position to teach Geology and Biology in 
a college. She has had seven years successful 
experience. 
Box 31, NANTUCKET, MASS. 




OR EXCHANGE.—Many species o 
iana Unionide, among which are joe 
dnas castaneus, purpuratus, jamesi- 
bairdianus, cerinus, cornutus, geometricus, 
nydian us, trapezoides, tuberculatus, gracilis, 
asperrimus, and anodonta opaca. Have other 


sf E: EXCHANGE—Thirty species of Union- 
from Spoon river, Ill. ; the finest in the 




TED, 
os and aaue literature. 
ILL 

Would like other — of shells, fossils, and 
scientific papi in re 
AYLAND SD VAUGHAN, 
LEBANON, LA. LA. 
New York, Kingston-on-Hudson. 
eae An Scuoot, cS 
