150 THE AMERICAN NATURALIST [\^ol. XL 



Beccari's long-interrupted palm studies have been resumed, ajid 

 he has recently published several important papers in Webbia, issued 

 by Count Martelli of Florence. 



Habit photograms of Sabal palmetto are given by Nehrling in Die 

 Gartenwelt of July 15. 



A note on some agaves flowering at Le Martola is published by 

 Berger in The Gardeners' Chronicle of August 26. 



From tests recorded in Bulletin no. 72 Bureau of Plant Industry, 

 U. S. Department of Agriculture, Scofield concludes that the salt water 

 limit of Zizania aquatica is approximately represented by 0.03 of the 

 normal solution of sodium chloride, — when the water is not appre- 

 ciably salty to the taste. 



An illustrated paper on the ancestors of the "Big Trees" (Sequoia), 

 by Berry, appears in Popular Science Monthly for September. 



According to vol. 5, no. 3, of the Bulletin du Jardin Impcriale Bota- 

 nique de St. Petersbourg, the St. Petersburg garden has recently secured 

 three specimens of Qsmunda regalis over 1000 years old. 



Two fascicles (222 and 223) of Engler and Prantl's Die natiirlichen 



vol. 48, part 1, of Smifh.soriinn Mi.srelhineous Collections. 



Regeneration among kelps is considered by Setchell in vol. 2, no. 5, 



of Univcrsify of California Publications — Botany. 



A well illustrated popular account of desert plants is published by 

 Holder in The Counfn, Ca/nxlar of August. 



A paper on tt,e Tne,^a>|,ore ni.Mul.rane of the gvmnosperms, by 

 Thoins(,n, form. no. [ of ihr rnlrrrsify of Tnmnfn Sfudirs, liiolog- 



Karyokinetio pap. is of unportance oceupv vol. 24, part 1, of the 

 Jahrburhcr fur irissm^rhnjHirln llnfnnik, issued in July. 



The importan(v of inx ( ^ripnions of seedling stages, as presented 

 by Dr. Harris before the St. r>()uis Congress of 1904, is analyzed in 

 .Science of August 11. 



