— 3G— 



— Beginners in the study of mosses will find the Analytical Keys 

 in Dr. Grout's "List of Mosses," described on another page, one 

 of the best aids they can procure. We can supply it for fifteen 

 cents in stamps. It will be given with a year's subscription to 

 the Fern Bulletin for sixty cents. 



— Those interested in the flora of Texas, will find " Botanical 

 Explorations in Southern Texas" by Mr. A. A. Heller, especially 

 helpful. In 1894 Mr. Heller spent several months collecting in 

 the vicinity of Corpus Christi, and San Antonio, which resulted in 

 the above mentioned volume. It is an octavo of a hundred pages, 

 containing a list of the plants collected, with numerous notes con- 

 cerning them. 



— Directions for performing thirty-five experiments connected 

 with the growth, movements, respiration and composition of plants 

 are given in " Laboratory Exercises in Vegetable Physiology"* 

 by Prof. J. C. Arthur, of Perdue University. These directions are 

 explicit enough to guide the student in manipulation, but he is left 

 to make his own deductions from what he sees. The pamphlet is 

 neatly printed, has several illustrations, and will be of interest to 

 all students of this branch of botany. 



— It has now been about eight years since a complete catalogue 

 of the plants of North America north of Mexico was published. 

 In that time the amount of new material which has accumulated 

 has rendered a new list very desirable. This has been given us 

 by Mr. A. A. Heller, whose " Catalogue of the North American 

 Plants North of Mexico" is now ready. There are nearly fifteen 

 thousand numbers given. The arrangment of the families and the 

 nomenclature of the species is in accord with the most recent ideas 

 on the subject. In typography and make-up the book is excellent. 

 Copies may be had for sixty cents by addressing the author at the 

 University of Minnesota, Minneapolis, Minn. 



*" Laboratory Exercises in Vegetable Physiology " by J. C. Arthur. 

 Kimmel & Herbert, Lafayette, Ind. Price 35 cents. 



Mr. Charles J. A. Knowles records a forking frond of Polypo- 

 dium pectinatum, and Miss Margaret Slosson adds four other 

 species that have this peculiarity, namely: Woodsia obtusa, 

 Asplenium ruta-muraria, Phegopteris Dryopteris and Osmunda 

 Claytoniana. 



