244 SOME NEW BOOKS [march 



PETIT CULTURE. 



Bush Fruits. A Horticultural Monograph of Raspberries, Blackberries, 

 Dewberries, Currants, Gooseberries, and other Shrub-like Fruits. By 

 Frederick W. Card, Professor of Horticulture, Rhode Island College of 

 Agriculture, etc. 8vo, pp. xii. + 537, with 113 figures. London and 

 New York: Macmillan and Co., 1898. Price 5s. 



The scientific cultivation of fruit, especially of the smaller kinds, has at least 

 in this country not received the attention which it deserves. It may indeed be 

 doubted whether many of those who delight in the autumn wealth of our Eng- 

 lish hedgerows think seriously of growing the wild species for profit, much 

 less of attempting to improve them. Our American cousins have, however, 

 devoted a considerable amount of characteristic energy to the cultivation of 

 "berries," whether native or foreign, and the present volume is the first of a 

 proposed series of monographs on American fruits. 



Professor Card divides his work into four parts, the first of which is devoted 

 to the discussion of the cultural methods best adapted to berries in general, 

 with remarks on marketing and evaporation. The second and third parts are 

 concerned with "brambles" (including raspberries) and " groselles " (currants 

 and gooseberries) respectively, and contain special directions for the cultivation 

 of the various species and varieties. Careful descriptions and figures are pro- 

 vided of the more important pests and diseases, while references to standard 

 works are given for all the species of fungi and insects known to attack the 

 plants concerned. 



The book should prove of service to all who are interested in petit culture, 

 whether in America or at home, not only because certain of the species described 

 are native to those islands, but also because similar treatment might with 

 advantage be applied to some of our own wild fruits. J. A. Terras. 



INTRODUCTION TO PHOTO-MICROGRAPHY. 



Photo-Micrography. By Edmund J. Spitta, L.R.C.P., M.R.C.S., F.R.A.S. 

 4to, pp. 163, with 41 half-tone plates and 63 text illustrations. 

 London: The Scientific Press, 1899. Price 12s. 



This work will be useful not only to beginners, but also to those accustomed 

 to photo-micrographic work. It discusses the methods employed, the difficulties 

 encountered, and the means adopted to overcome them. Of especial interest 

 are the parts dealing with the covering power of lenses, the best combinations 

 to use under special circumstances, the employment of condensers, the rough 

 estimation of the N.A. of low power lenses, bacterial cultures and slides, and 

 Appendix IX. It is to be regretted that the author makes no mention either 

 of magnesium as an illuminant nor of the methods available in the case of living 

 specimens. A more detailed account of the best methods of producing fine 

 negatives of histological specimens with the highest powers would have added 

 much to the practical value of the work. The figures, with the exception of the 

 histological ones, are for the most part excellent. E. W. C 



THE ANTLERS OF THE CERVIDAE. 



Studien fiber Hirsche (Gattung Cervus im weitesten Sinne). By Dr. H. 

 Nitsche. Heft 1. 4to, pp. xii. + 102. with 12 pis. and 12 figs. 

 Leipsic : Engelmann, 1898. Price 20 Marks. 



The importance of antlers in the classification of the Deer, although some- 

 what underrated a few years ago, is now fully recognised by naturalists ; and it 

 is therefore satisfactory to find a morphologist of Dr. Nitsche's standing taking 

 up the subject in earnest. The range of antler variation has indeed been fully 



