264 HORTICULTURE [Bot. Absts., Vol. VI , 



professional interest. Formerly many professional gardeners were trained here. A plea is 

 made for the establishment at Strasbourg of a definitely organized institution for training 

 native gardeners, particularly those capable of speaking French and the Alsatian dialect. — 

 E. J . Kraus. 



1811. Flippance, F. Betel. Gardens' Bull. Straits Settlements 2:294-300. 3 pi. 

 1920. — A description of the Betel nut palm (Areca Catechu, Linn.) and the Betel Leaf (Piper 

 Betle, Linn.) with notes on their uses and extent of cultivation in Malaya. — T. F. Chipp. 



1812. Garnier, M. Plantes nouvelles ou peu connues. (New or little-known plants.) 

 Rev. Hortic. [Paris] 92:55-56. Fig. 18-14. 1920.— Brief descriptions of nine varieties of 

 vegetables, including the bean, beet, cabbage, tomato, melon, peas and cardoon, and eight 

 varieties of flowers, such as Cyclamen, Myosolis, carnation, Petunia, Begonia, Verbena, and 

 China aster, are given. — E. J. Kraus. 



1813. Gould, H. P. Some useful and timely hints on peach growing. Better Fruit 14 u : 

 8-9. 1920. — A verbatim reprint from U. S. Dept. Agric. Farmers Bull. 632. 



1814. Guion, A. Chauffage de serres par l'electricite. [Heating greenhouses by elec- 

 tricity.] Rev. Hortic. [Paris] 92: 64. 1920. — It is feasible to use electricity for this purpose 

 only when it can be obtained cheaply. Heating may be effected by the use of radiators, of 

 which there are many forms available, or by tubes beneath the benches and connected with an 

 electrically heated supply tank or boiler. One of these devices could be installed in each 

 house or group of houses. It would be possible to heat them by means of wood or charcoal- 

 burning stoves in case the current should fail temporarily. — E. J. Kraus. 



1815. Hammond, A. A. Small fruit culture in Victoria. Jour. Dept. Agric. Victoria 

 18: 351-358. 4 pi. 1920.— A description of the cultivation of the loganberry and of condi- 

 tions suitable for its growth is given. — J. J. Skinner. 



1816. Hansen, Dan. The work of the Huntley reclamation project experiment farm in 

 1918. U. S. Dept. Agric. Dept. Circ. 86. 32 p., 5 jig. 1920— See Bot. Absts. 6, Entry 1413. 



1817. Headley, F. B. The work in 1918 of the Newlands (formerly the Truckee-Carson) 

 reclamation project experiment farm. U. S. Dept. Agric. Dept. Circ. 80. IS p., 1 fig. 1920.— 

 See Bot. Absts. 6, Entry 1417. 



1818. Hess, N. Experiences in plant hybridization. Proc. Amer. Soc. Hortic. Sci. 16: 

 52-60. (1919) 1920. — Attention is drawn to the fact that of all the fields pertaining to evolu- 

 tion, the one that seems to be the least cultivated is hybridism. Few artificially produced 

 hybrids are referred to in citing examples, but most of them are natural hybrids. — Hybridism 

 has been employed more especially in floriculture, and this has been for the purpose of obtain- 

 ing monstrous novelties. Many of the most popular ornamental flowers are due to hybridiza- 

 tion. — The author has been carrying on rather extensive experiments in hybridization with 

 two genera; namely, Rubus and Quercus. Detailed results, obtained from crossing black- 

 berries and dewberries are given. Data are presented on third generation results in crossing, 

 in several cases. — The results of several years' work in crossing different oaks (Quercus) are 

 given. From the work with oaks the author states that he has learned that the various 

 individuals of a species vary widely in their affinity for foreign pollen. He has come to 

 believe that to be successful in hybridization, it is necessary to search out by trial the indi- 

 viduals having the proper affinity for the pollen to be applied. For this purpose, seedlings 

 would naturally be preferred to plants produced vegetatively. — E. C. Auchler. 



1819. Howard, W. L. Fruit growing and dairying. A desirable farming combination. 

 Proc. Soc. Promotion Agric. Sci. 39: 135-139. 1919.— Fruit growing in California has become 

 highly specialized. Whole districts devoted almost exclusively to the production of one 

 kind of fruit for 35 or 40 years are finding the soil is becoming unfertile for want of humus. 



