230 HORTICULTURE [Bot. Absts., Vol. V, 



1742. Haywood, A. H. The rice bean (Phaseolus calcaratus) or so-called Jerusalem pea 

 (P. trinervis). Agric. Gaz. New South Wales 31: 2S9-290. 1 fig. 1920.— Notes are given on 

 the plant as a cover crop for bananas. Its use is recommended. — L. R. Waldron. 



1743. Hodgson, R. W. Pruning the navel oranges. California Citrograph 5: 138, 169. 

 1920. 



1744. Honnet, G. Les hybrides en 1919. [The hybrids in 1919.] Rev. Vitic. 52: 53-59. 

 1920. — The oldest hybrids most resistant to drought are: Oberlins, Gaillard Number 2, Con- 

 derc 202 X 75, 146 X 51, Seibel 1000, 2859, Bertille-Serve 450; those less resistant are: S. 2003, 

 2006, G. 194, 157, S. 2734, 880, C. 272 X 60. Two black grapes, B-S, 413 and C. 106 X 46, have 

 grown and produced well. The new black direct producers are: Baco Number 1, B-S 872, 

 893, 1129, Malegue 829 X 6, M. 2049 X 3, S. 4121, 4643, 4636 and 5212. Among the white varieties 

 are: C. 162 X 5, S. 2638, 4681, 4955, 4986, 5279, M. 1647 X 8, 1157 X 1, Baco 22A, B. 43 X 23. A 

 certain number of these new varieties appear to be very promising. They are more resistant 

 to fungous diseases than Vinifera varieties. — L. Bonnet. 



1745. Houser, J. S. Recent tests of materials to control San Jose scale. Monthly Bull. 

 Ohio Agric. Exp. Sta. 5: 49-51. 1920. 



1746. Howard, A., and G. L. C. Report of the Imperial Economic Botanists. Sci. Rept. 

 Agric. Res. Inst. Pusa 1918-19: 46-67. PI. 5 and 6. 1919.— See Bot. Absts. 5, Entry 1159. 



1747. Hyde,W. C. Orchard cover-crop experiments on the Mountere Hills. New Zealand 

 Jour. Agric. 19: 364-365. Fig. 1. 1919.— See Bot. Absts. 5, Entry 1262. 



1748. Jones, J. Plant importations. Report on the Agricultural Department, Dominica, 

 1918-19: 2-3. [Imp. Dept. Agric. Barbados, 1919.] — Notes are given on the following plants: 

 Mexican apple (Casimiroa edulis), Rambutam (Nephelium lappaceum), Poularia suavis, 

 Jaboticaba (Myrciaria cauliflora), Brazil nut (Bertholetia excelsa), Sapucaia nut (Lecythis 

 Zabucajo), Suwarri nut (Caryocar nuciform) and Chicle gum tree. Other plants under trial 

 are Sarawak bean (Dolichos Hosei), from St. Lucia, and Cytisus Palmensis, C. stenopetalus 

 and C. pallidus, plants used in the Canary Islands for forage purposes. Mention is also 

 made of Momordica cochin-chinensis , the seeds of which contain an oil of remarkable drying 

 properties. — J. S. Dash. 



1749. Jones, J. Plot experiments with orchard cultivation. Report on the Agricultural 

 Department, Dominica, 1918-19: 18-23. [Imperial Department of Agriculture, Barbados. 

 1919.]— The author treats in a full and interesting manner the difficulties encountered while 

 carrying on manurial and other experiments with such permanent crops as cacao and limes. 

 Many useful suggestions are given.— J. S. Dash. 



1750. Kirby, R. S., and J. S. Martin. A study of the formation and development of the 

 flower beds of Jonathan and Grimes Golden in relation to different types (clover sod, blue grass 

 sod, cover crop, and clean tillage) of soil management. Proc. Iowa Acad. Sci. 25: 265-290. 

 PL 7. 1920. — Experiments made at Council Bluffs, Iowa, indicate that flower buds of apple 

 form earlier and in greater numbers where soil moisture is less, and that nitrogen added by 

 clover sod induces earlier formation of flower buds. The flowers are differentiated during a 

 period of about four weeks on each tree, at some time between July 1 and September 15, 

 according to variety and location. — H. S. Conard. 



1751. Kelley, W. P., and E. E. Thomas. The effects of alkali on citrus trees. Cali- 

 fornia Agric. Exp. Sta. Bull. 318: 305-337. 1920. — The bulletin aims to enable citrus growers 

 to recognize the effects of alkali, to appreciate the seriousness of alkali in citrus culture, to 

 apprehend the relationships between irrigation and the accumulation of alkali, and to see 

 that the application of certain fertilizers, especially nitrate of soda, may bear an important 

 relation to the accumulation of alkali. The discussion is confined mainly to the effects of 



