﻿V LUME VI. 



No. 126. The North American Species of Porella. By M. A. Howe (1897), 



25 cents. 

 Title-pages for Vols. L, II., III. IV., and V. can be supplied. 



The series as above listed will be supplied for $15. 



Copies of the Catalogue of Plants found in New Jersey (i8§9) by N. L. Britton. 

 may be had for $2. Address 



Prof. l. M. Underwood, 



Columbia University, NEW YORK CITY. 



A Text-Book of General Lichenology 



With Descriptions and Figures of the Genera Occurring in the Northeastern 



United States. 



By ALBERT SCHNEIDER. M S , M D 



The only modern work on North American Lichens, including a discussion of their 

 Morphology and Physiology, with a special reference to the phenomena of symbiosis. 



Large octavo. 230 pages, 76 full-page plates Price in pi per, net, $3.80 : in cloth. 

 $4.25. Sample pages will be sent on application. 



PUBLISHED BY 



WILLARD N. CLUTE & COMPANY, Bineham 



Curtiss' Second Distribution of 



Southern U. S. Plants. 



11 ^ ERI J ES V.— Consisting of 200 Phaenogams and Ferns, collected in Florida 

 will be ready early m February. Also the third and last series of my 



which will comprise about 30 Species. On packages shipped via New Vork freight 

 charges will be prepaid to that point. Lists furnished on application. Orders su- 

 hcited for any or all of the series. Address, 



A. H. CURTIS§. Jacksonville, Fla. 



Cambridge Botanical Supply Co. 



* 



L/Iass. 



DEALERS IN 



Herbarium and Laboratory Materials and Apparatus 



Microscopes, Books, Specimens. 



New Catalogue of Laboratory Note Books and Specimens (or Laboratory Use, Choice 

 Material, i\ew Improvements in light Herbarium Cases proof Against Insects, 

 Moisture, Dust, Scorching. 



Everything Useful to Botanists. 



