BOOK REVIEWS. 



441 



again, is a protection both from rain and excess of light, and may be 

 greeted by external influences. 



An interesting part of Dr. Schwertschlager's book is that in which 

 he deals with the relative periods of blossoming, Jeaf opening in spring, 

 and ripening of the fruit in autumn of the different species. In order 

 to get over the differences in these respects caused by situation and 

 aspect the author has stated these periods in the tables he gives, not 

 in days of the year, but with reference to the occurrence of the like 

 event in the nearest bush of R. canina which, as being the most widely 

 distributed, is taken as a standard for the others. 



The later chapters of the book deal with the problem of descent, 

 and here the author does not confine himself to European Eoses, but 

 passes in a general review the whole race and their geographical dis- 

 tribution, concluding with a forecast of the probable lines of develop- 

 ment of the species. 



•'A Simple Method of Bottling Fruit at Home." By J. Stoney, 

 F.E.H.S. 8vo., 30 pp. (Mort, Stafford, 1910.) 6^^. 



To those in search of a handy little book on the housewifery occupa- 

 tion of fruit bottling and the like we can heartily recommend this. The 

 author very lucidly expounds the principles upon which successful 

 preservation of fruits depends and clearly directs as to methods to be 

 employed. He points out that the work may be done with a minimum 

 of apparatus, the only special appliances really necessary being proper 

 bottles and a thermtoeter. Some recipes for the making of janl, 

 wines, and pickles are added by Mrs. Stoney. 



As the book is so excellent, we cannot but regret that the authdr 

 did not also infclude the bottling of certain vegetables. 



