40 THE AAfERICAN BOTAXI^T, 



in New England, such other matters are inckided as the 

 time of fruiting, the habitat they affect, the meaning of the 

 scientific names, etc. There is also included a glossary and 

 a key to the species. While not at all comprehensiv^e, its 

 compact size will permit of its being taken into the field 

 and it will doubtless be well received in the region it covers. 

 (Boston, Houghton, Miflflin & Co., $1.25.) 



"Getting Acquainted with the Trees" is quite as inter- 

 esting for its illustrations as for the text ; botli are l)y J. 

 Horace McFarland and both are excellent in their way. 

 The book makes no pretentions to comprehensiveness, 

 being a series of papers reprinted from The Outlook in 

 which the author has recorded his appreciation of many 

 of our most attractive trees, both native and exotic. The 

 illustrations are from photographs and printed on a paper 

 made especially for them which lacks the vile odor and 

 shiny surface of most plate papers. (New York, The Out- 

 look Co., 1904.) 



Bailey's " Plant Breeding" has recenth^ appeared in a 

 third edition, which is one of the best indications of its 

 usefulness. In a general wa}' the facts in the cross-pollin- 

 ation of plants are known to all botanists, but Prof. Bailey 

 has gone more extensively into the subject. Plant breed- 

 ing does not consist in mere cross-pollinating plants. It 

 has to do also with the selection for further breeding of 

 the best plants resulting from such crossing and the carry- 

 ing the form toward certain definite and desired ends. 

 This requires a full knowledge of the constitution of 

 plants, the variations likely to occur through changes in 

 environment, food-supply, climate, etc., and a multitude of 

 other factors, great and small. All these topics have been 

 carefully discussed, as well as DeVries' mutation theory, 

 Mendel's laws, etc. A most exhaustive bibliography 

 arranged chronologically is given, beginning in 1724 and 

 extending to the present. The book is indispensable to 

 horticulturists and ever}^ botanist should be acquainted 

 with the facts it contains. (New York, The Macmilkm 

 Co., 1904.) 



