28 

 REVIEWS AND NOTES 



Bailey's Principles of Fruit Growing* 



The volume just issued is the twentieth edition of the work. 

 Although representing a new edition of a former work, practically 

 the entire book has been rearranged and rewritten. All phases 

 of the subject are considered from the selection and location of 

 the land to the harvesting and marketing of the crop. 



The early chapters are devoted to a careful consideration of 

 the physical factors concerned in fruit raising, such as topo- 

 graphical features, climate, soil, fertilizers and the best methods 

 of tillage. The following two chapters deal with the selection 

 of the varieties, and the planting and subsequent care of the 

 trees. Considerable attention is given to the matter of pruning. 



Under accidents and injuries a list of the principal insect and 

 fungous enemies is given with suggestions for their control. The 

 concluding chapter is devoted to the harvesting and marketing 

 of the product. The entire work is well illustrated and so 

 written as to appeal to the amateur as well as to the professional 

 fruit-grower. 



F. J. Seaver 



Baden's Observations on the Germination of Spores of Coprinus sterquilinusf 



Miss Baden in an attempt to study the sexuality in the 

 Basidiomycetes reports that the spores of Coprinus sterguilinus, 

 a European ink-cap which resembles somewhat Coprinus stercora- 

 rius do not germinate in Kuster's solution. However when the 

 spores are subjected to digestive juices or are placed in a decoction 

 made of horse dung the spores are found to produce germ tubes. 

 The cause of germination the author ascribes to the influence of 

 certain rod-shaped bacteria. To prove this contention filtered 

 and sterilized horse dung decoction was inoculated with the 

 spores in question but no germination took place. When the 

 natural dung bacteria were present germination took place 

 readily. Another point of considerable interest which Miss 



* Bailey, L. H. The Principles of Fruit Growing, pp. i-xiv, 1-432, figs. 186. 

 Macmillan Co., 1915. $1.75. 



t Baden, Margaret L. Observations on the Germination of Spores of Coprinus 

 sterquilinus. Ann. Bot. 29: 135-142, pi. 7. 1915. 



