THE BOTANISTS OF Pll I I.A Dlll.ril I A. i'l'j 



of Horticulture, Botany and Kindred Su])JL'cts. \^)luin('S 

 I and II, 1891-1892, running to date. 



11. The American Naturalist. \^)luine 1. published at 

 Salem, Mass., 1868 (octavo), until \^»luiiic XX. 1n7<*>. when 

 it was printed at Boston, until A'olume XII. 1.s7n. wlicn the 

 publication was transferred to Pliiladeli)]iia, wliere it still 

 continues to be printed. 



12. Transactions of the Wagner Free Institute of Science 

 of Philadelphia. Quarto, Volume T. May, ISST. \V)lume 

 II, December, 1889. Volume III, Part I. August, 1890. 

 Part 2, December, 1892. Part 3, March, 1.S95. Part 4, 

 April, 1898. Volume IV, January, 1891), begun. Volume 

 V, January, 1898, begun. 



13. Forest Leaves, started July, 1880, has run to Volume 

 VII, No. 4, August, 1899. Published bi-monthly by the 

 Pennsylvania Forestry Association. 



14. Contributions from the Botanical Laljoratory of the 

 University of Pennsylvania. A serial [)uljlication, begun 

 in 1892, and devoted to botanical articles by the profes.sors, 

 instructors and students of the School of Biology. The first 

 two numbers of Volume I were published under similar 

 cover, and the title of the plates were similarly printed 

 (Bot. Cont. Univ. Penna.), but No. 3, A\»lume I. 1S1»7. was 

 published for the University of Pennsylvania, with the 

 authorization of the Committee on' Publication. The covers 

 now conform with Publications of the University of Penn- 

 sylvania (new series). As set forth in the classification, 

 the Contributions from the Botanical Laboratory belong- 

 to Group II, Serial Publications, Series in Bofauy. The 

 articles that have so far appeared are as follows : * 



*The headings of the phites in Volume I. Xo. :i, and Volume H. No. 1, were 

 changed, the numbers being unbracketed. as in the two previous numbers, and the 

 title reading " Bot. Contrib. Univ. Penna." 



