No. 447-] NOTES AND LITERATURE. 233 



Perrot and Guerin publish an account of the Didiereas of Mada- 

 gascar, with habit illustrations, in the Journal de Botanique of 

 August-September. 



A critical revision of Gossypium, by Aliotta, has been separately 

 printed from vol. 5 of the Annali della R. Scuohi Sup. d' Agricoltura 

 in Portici. 



Andean cacti of interest are being described by Schumann in 

 current numbers of the Monatsschrift fur Kakteenkunde. 



The Indian Species of Polygonum and reviewed by Gage in vol. 

 2, no. 5, of the Records of the Botanical Survey of India, dated 

 Sept. 14. 



Part XX of Holm's Studies in the CyperacejK is contained in The 

 American Journal of Science for December. 



The comparative anatomy and phylogeny of Sequoia are discussed 

 by Jeffrey in vol. 5, no. 10, of the Memoirs of the Boston Society of 

 Natural History, issued in November. 



A new Alstonia, yielding rubber, is described from New Caledonia 

 by Schlechter in Dcr Tropenpfanzer, for November. 



Shade trees, etc., adapted to New Mexico are considered by 

 Garcia in Bulletin 7/0. 47 of the Agricultural Experiment Station of 

 New Mexico. 



An article on Conservation and Cultivation of Medicinal Plants, 

 by Kramer, is contained in the December number of the American 

 Journal of Pharmacy. 



An account of the grape-growing industry of the United States is 

 contained in The National Geographic Magazine, for December. 



Symbiosis of Volvox and Azotobacter is discussed by Reinke in 

 the Berichte der deutschen botanischen Gesellschaft, vol. 21, Heft 8. 



A discussion of soil temperatures and vegetation by MacDougal, 

 is reprinted from the Monthly Weather Review, for August. 



School Science, for December, contains a description of a new and 

 cheap form of Auxanometer, by Lloyd. 



An account of a seemingly bacterial disease of tobacco, by 

 Stevens and Sackett, is given in Bulletin no. 188 of the North Caro- 

 lina Agricultural Experiment Station. 



