vi ADVERTISEMENTS. 
BETTER THAN EVER BEFORE. Increase of | or ng Sink agg ae! one in Evy Re 
‘THE Bic et 
A medium of interchange of observations for all student. d di f nature. Devoted to all departments 
of nature studies 
i 5 Original, — Don’t fail to try it for 189t. 
E. F. BIGELOW, Editor and Publisher. Only so cents a years zs 
yea 
sb peo yee canis open’ ’ (to observe the wonders 
oe and = of the out-door world) is the. motto of 
M. A. Boorn, F. R. M.S. aie: Longmeadow, THE pont iR: 
Jonn H. SAGE, Ornithology, sean ness Seo D : hill feld h 
W.A. PEARSON, Entomology, Norwich, Con 
: ou interested in birds, ‘tee insecs, 
rocks, etc. ; honk hee you a microscope e? Then you will 
be pleased ‘with THE OBSERVER. 
Miss C. ANTOINETTE aa ban. 
New Britain , Conn. 
Addrss, E. F. BIGELOW, Publisher. 
THE OBSERVER, No. X aud Ave. = Portland, Conn. 
“FME SANITARIAN 
Is the best Sanitary publication in America” (Mississippi Valley Medical 
Monthly) ; “Easily maintains its superiority over all similar publications” 
(Medical World) ; and “Has accomplished more good than all of the other 
Sanitary papers put together” (Hydraulic and Sanitary Plumber). “The 
Editor, Dr. A. N. BELL, is well known to the mercantile community for his 
co-operation with the merchants in quarantine reform, and to his profession as 
a leader in Sanitary Science’’ (Wew York Journal of Commerce). 
96 PAGES TEXT MONTHLY; TWO VOLUMES YEARLY. 
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113A SECOND PLACE, BROOKLYN, N. bo 
FORS 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 100 specimens. 
CHAS. H. STERNBERG, 
P. O. Box 60, LAWRENCE, KANSAS. 
Betulites vestii, var. ovalis Lx- 
