wv ADVERTISEMENTS. 


Jas. W. Queen & Co., 
PHILADELPHIA. 
Microscope Makers — 
Mieroseopieal Supplies, 
Botanieal Supplies. 



ACME MICROSCOPE 
fits Be 5 
INSECT PINS, SHEET CORK, ete. 
Chea of Canadian Plants. 
There has been published and is now offered for sale what is 
believed to be a complete list of the Phanogamous and Vascular Cryp- 
togamous Plants of Canada. The Catalogue of Canadian Plants issued 
by the Geological Survey of Canada has been used as a basis, but a 
large number of species discovered since it was published have beer | 
included in the list. Many genera, too, have been revised by specialists, | 
and their revisions have been used in the preparation of the Check-List. | 
Several additional species discovered last year (1890) are included. 
The price of the list is 50 cents per copy, 3 copies for $1.00. ’ 
Address, JAS. M. MACOUN, 7 
| 

Geological Survey, Ottawa, Canada. 


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 100 specimens. 

CHAS. H. STERNBERG, 
P. O. Box 60. LAWRENCE, KANSAS. 

Betulites vestii, var. ovalis Lx. 



