HORTICULTUKE. 853 



develop at a shallow depth, are easily harvested and of good quality, though inferior 

 in this latter respect to Dioscorea batatas. 



The "cheyote," Sechium edule, L. Trabut {Bui. Agr. Algerie et Tunisie, 6 

 {1900), Xo. 22, pp. 617-62^, fig. i).— Directions for the culture and uses of the 

 cheyote, or vegetable pear. 



Report of the horticulturist, S. M. Emery {Montana Sta. Bui. 24,pp. 125-144). — 

 An outline is given of the work of the year with orchard fruits and strawberries. 

 Lists are given of the apples, pears, crabs, cherries, apricots, prunes, and plums set 

 in the orchard and the number alive after the severe winter of 1898-99. 



A test was made of the value of root-pruning two-year-old apjile trees according to 

 the Stringfellow method, as compared with those treated normally. Out of 20 trees 

 root-pruned according to the Stringfellow method 12 failed to come out alive in the 

 spring of 1899, while out of 80 unpruned trees only 24 failed to come through the 

 winter. It is stated in this connection that the winter of 1898-99 was the most 

 severe in the history of the station and that of the 20 root-pruned trees only 4 could 

 be classed as especially hardy. The results are considered so favorable that further 

 experiments along this line will be undertaken. 



The report on strawberries covers the tabulated data secured in a test with 61 

 varieties. 



The content of plant nutrients in apples and pears, E. Hotter {Ztschr. 

 Landw. Versucli.'^ic. Oe.^terr., 3 {1900), pp.5S3-585; at>x. in Ztxclir. Untermch. Nahr. u. 

 Genussmtl., 3 {1900), Xo. 12, p. 833). — The average compostion of the ash of 20 vari- 

 eties of apples and 13 varieties of pears is recorded. The apples were slightly 

 richer in total ash and nitrogen than the pears, but contained only about half as 

 much sulphuric acid. Otherwise the composition of the two was very similar. 



Plum in Kansas, with a chapter on prunes ( Topeka: Slate, 1900, pp. 159). — This 

 consists of a large number of articles compiled from horticultural journals, bulle- 

 tins, and reports, by W. H. Barnes for the Kansas State Horticultural Society. The 

 work also contains reports of many Kansas plum growers. The articles selected 

 treat of the botany, pollination, culture, varieties, insects, and diseases of plums, 

 etc. The chapter on prunes is taken largely from California and Oregon sources. It 

 is not expected that prunes can be grown with profit in Kansas, but it is thought 

 that there is a large opening for the plum industry. 



California navel lemon {California Cult., 15 {1900), Xo. 26, p. 403, fig. 1). — The 

 origination of an absolute seedless lemon is reported. Illustrations of the new 

 lemon and of cross sections are given. 



Olive culture, W. J. Allen {Agr. Gaz. Xew South Wales, 11 {1900), Nos. 10, p)p. 

 829-836, pis. 5, figs. 5; 11, pp. 1020-1022, figs. 4; 12, pp. 1059-1074, pis. 11, figs. 4).— 

 Popular article dealing with the history and propagation of olives, soils, transplant- 

 ing, cultivation, pruning, varieties, oil making, pickling, etc. In the Wagga olive 

 orchard the varieties Bouquettier and Correggiola have been found superior to all 

 other varieties in the production of oil, and these are recommended for planting. 



Fruit tree culture in pots, J. Hudson {Garden, 58 {1900), Xo. 1507, pp. 264,265, 

 figs. 2). — Fruit houses, potting and pruning trees, and varieties of peaches, plums, 

 cherries, pears, and apples best suited for growing in pots are noted. 



Forcing fruits under glass, W. Turner {Amer. Gard., 22 {1901), Xo. 318, p. 

 58). — Forcing in borders and in pots is considered and a list given of early, midsea- 

 son, and late varieties of peaches, nectarines, pears, plums, ajiples, and figs suitable 

 for the purpose. The temperature at which the house should be held at different 

 periods in the growth of the fruit, methods of watering, pruning, etc., are also con- 

 sidered. 



The cocoa tree ; its culture and management in all countries of production, 

 H. Jumelle {Le cacraogfr; sa culture et son exploitation danstous les jmijs de production. 

 Paris: Augustin Challamel, 1900, j^p- 211, figs. 19). — A comprehensive treatise on the 



