THE AMERICAN BOTANIST 125 



cardo's great work but with the families rearranged according 

 to the results of the author's studies. In it are keys to the 

 orders, families and genera of iungi, a guide to the volumes of 

 Saccardo's "Sylloga Fungorum," an index to the families in 

 the "Sylloge" and in Rehm's "Discomyceteen," and various les- 

 ser lists. Numerous surprises await the botanist who has not 

 kept closely in touch with advances in fungology. The genera 

 are listed under the four familiar classes Schizomycetes, Phy- 

 comycetes, Ascomycetes and Basidiomycetes, but a few come 

 under the class Chlorophyceae. The fungi imperfecti are listed 

 separately. One looks in vain for the Saccharomycetes. These 

 have been included with the Ascomycetes. In the same group, 

 also, are found the rusts and smuts which in other works are 

 usually found among the Basidiomycetes or else by themselves 

 as Aecidiomycetes. The line between lichens and fungi has 

 been entirely obliterated, the hchen genera and fungus genera 

 being arranged quite according to the fugus relationship. The 

 book ends with a glossary so complete that it resembles a Latin 

 dictionary. More than 2700 genera are keyed out in this 

 work; it would be out of the question to include the species. 

 All who work with the fungi owe a great debt to Prof. Cle- 

 ments for issuing such a book. The book is an octavo of 220 

 pages and is issued by the H. W. Wilson Co., of Minneapolis 

 at $2.00. 



Books on agriculture are rapidly appearing but none too 

 rapidly considering the need of the schools for teaching agri- 

 culture and the long way behind the times such teaching is. 

 A new book issued by the American Book Co,, is "Practical 

 Agriculture" by John N. \\'ilkinson. This takes up the sub- 

 ject by some sixty pages devoted to soils, tillage and the needs 

 of the plant followed by half as many relating to special crops 

 after which comes such subjects as fertilizers, propagation of 

 plants insect friends and foes, more special crops, landscape 

 gardening, stock feeding, animal husbandry, etc., etc. Al- 



