200 
authors has been that of Winter in Kryptogamen Flora (Die 
Pilze), while Saccardo’s principles of arrangement have frequent 
recognition. Priority of authorship is maintained by the use of 
parenthesis in all cases when a generical transfer has been made, 
and none but the author is recognized. In the preface the 
authors say: ‘‘The piratical practice of omitting the first name 
and substituting the second in its place cannot be too strongly 
condemned.” 
Some sub-orders open with a key to the genera, and the wish 
naturally arises that all groups had been thus prefaced. A key 
to the sub-orders would also have been welcomed. There is a 
full index of species, but no corresponding list of the hosts. The 
forty-one page plates are from drawings by.the late F. W. An- 
derson, who worked from living specimens and presented the 
salient characters of many of the genera, thus adding greatly to 
the value of the work. Dr. T. J. Burrill elaborated the Erysiphee 
with his usual care. 
The work stands as a monument of painstaking effort, cies: 
the part of the authors, to place within the reach of American 
mycologists a guide to the study of an important and difficult 
family of fungi. : B. D. H. 
Sereno Watson. W:H.B. (Am. Journ. Sci. xliii. 441; reprint). 
Slime Moulds (Myxomycetes) of Crete. A. T. Bell. (Publ. Ne- 
braska Acad. Sci. ii. 15; abstract). 
Spraying for the Prevention of Plant Diseases. Jos. F. James 
(Sci. Am. Suppl. xxxiii. 436). 
Suggestions on the Classification of Metaphyta. Conway Mac- 
Millan. (Bot. Gaz. xvii. 108). 
Two Schools of Plant Physiology as at Present Existing m Ger i 
many and England, Emily L. Gregory. (Am. Nat. xxv- 
Pp. 211-217, 279-286), 
Vascular Cryptogamia of the Island of Grenada—On the. J. 
G. Baker. (Ann. Bot. vi. 95). 
Acrostichum Sherringii is described as new. 
Yuyucha, La. M. G. Lagerheim. (La Notarisia vii. 1376) 
A note on WNostoe commune, Vauch,, an edible alga from 
Ecuador, } 
