v ADVERTISEMENTS. 


BETTER THAN EVER BEFORE. Increase of Editorial zar Gi List = S ie Type. 
Improved Quality of Pap Prog y Respect. 
A medium of interchange of observations for all student. l l of nature. Devoted to all departments 

of nature studies 
2 Š Ori ingini Don’t fail to try it for 18ọ1. 
E. F. BIGELOW, Editor and Publisher. Deen, interesting. Dont a o ee 

Only 50 c a year, 
ASSOCIATE EDITORS: kas foto eyes open ” (to observe the wonder: 
and beauties of the out-door na is the motto ay 
M. A. Booru, F. R. M. S., Microscopy, I w, THE 
Joun H. SAGE, Ornithology, Portland, Conn. Tas D through 
W. A. Pearson, Entomology, Norw ee the woods; are you seeded in as: ‘fowers, ie 
Miss C. ‘Avecinecirs pe nD Botan rocks, etc. ; or have Then will 

New Britain, Conn. be pleased with THE OBSERVER. 
Address, E. F. BIGELOW, Publisher. 
THE OBSERVER, No. 5 Waverly Ave., Portland, Conn. 


Walker Panes in Natural History. 
The BOSTON SOCIETY OF NATURAL History offers a first prize of from $60 
to $100, and a second prize of a sum = exceeding $50 for the best memoirs, in 
PAERD oa one of the following subjec 
original investigation into p of r prome connected with the 
geslozy of the last ice epoch in New England; any of the glacial features, as for 
instance the qar and history of Sorini ~depanits and eskers, or of sand 
po par be selected. 
2. An Seal investigation into the recent changes of level of the whole or of 
a part of the pai line of the eastern United States. This inquiry must include 
observations o discussions of the phenomena exhibited by elevated sea 
margins and a nds ed for 
3. A study of any river valley i in New England containing an area of not les 
than one hundred square miles the inquiry to include the preglacial ien of the 
stream, the changes effecte n the basin by the last ice epoch, the relation of the 
valley to the neighboring rae and to changes of level of the sea. 
Each memoir must be accompanied by a sealed shire of enclosing the author's 
name and superscribed by a motto pen ek one borne by the re 
and must be handed to ne SEER ry on or before April Ist, weet Prizes will no 
be awardd ea the memoirs are deemed of adequate merit. 
r further DOAREN apply to 
Boston, July 1, rey. SAMUEL DEXTER, Secretary. 
FOR SALE. 
Twenty different specimens of fos- 
sil plants from the Dakota Group 
Cretaceous will be sent to any ad- 
dress on receipt of $2.50. 

Send stamp for plate illustrating the set 
and list of too specimens. 
CHAS. H. STERNBERG, 
P. O. Box 60, LAWRENCE KANSAS. 

Betulites vestit, var. ovalis Lx. 

rene eats 

