The undersigned is preparing a new edition of his 



BOTANIST'S DIRECTORY 



■ 



(Botaniker-Adressbuch — Almanach des Botanistes) 



and politely requests communicationof addresses of Botanists, as well as alterations 



in addresses. 



Short communications are requested to be sent on pictorial post- cards. 



The new catalogue of the Vienna Botanical Exchange Office, comprising 

 5000 Species of Herbarium Plants, will be forwarded franco on receipt of two 

 pictorial post-cards with address. 



J. DORFLER, 



III. Barichgasse 36, Wien (Vienna, Austria). 



Labrador and 

 Newfoundland Plants. 



Including Mossks, Lichens, Fungi, and Ai.gae supplied by the 



Rev. Arthur (B. Waghorne, 



Bay of Islands, Newfoundland^ 



For $10 and $8 per Hundred 



A collection containing about 10,000 species, 1,200 of which are foreign plants. Ferns, 

 Mosses, Hepaticae, Lichens, and Fungi are represented by 2,000 or more species, the 

 remainder are North American phaenogamous plants. Messrs. Pringle, Curtiss, Lem- 

 mon, Parry, Jones, Reverchon, Ellis, Underwood, Calkins nd other well known col- 

 lectors of North American plants have supplied most of the specimens; a fine collec- 

 tion and one worthy the attention of colleges or individuals desiring a collection of the 

 kind ; in addition to these is a large quantity of duplicates collected in Delaware and 

 adjoining territory by the undersigned which contains u great many good specimens of 

 Phaenogamous plants. Ferns, Mosses, Hepaticae, Lichens and Fungi. 



address: a. commons, 



Wilmington, Delaware (loi S. Dupont St.). 



Just Issued. 

 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF 



COLUMBIA UNIVERSITY. 



Vol. II. 



Hoorapfi 



tiG Nortli flmerlcaii Potenleae 



By PF.R AXEL RYDHEKCi, Ph.D. 



Quarto, 225 pages, 112 full-page plates. Price, $6.00 nef, ' 



A companion volume to Dr. John K. Small's •* Monograph of the North Ameri- 

 can Species of the Genus Polygcnum^^ published in 1895, which may be had at the 

 same price. Address 



Professor L. M. UNDERWOOD, Columbia University, New York City. 



