284 HORTICULTURE [Box. Absts., Vol. VIII, 



1973. Mercier, C. The electrification of seeds. Sci. Prog. [London] 13 : 482-485. 1919.— 

 More than 2000 acres have been planted with electrified seeds of different kinds. This treat- 

 ment has been found to be very beneficial and has resulted in an increase in yield, in weight 

 per bushel of the seed, in the length and strength of the straw, and in the number of plants 

 from each seed. Every kind of seed requires a special treatment, the details of which have 

 not all been worked out. The rationale of the process is unknown. — /. L. Weimer. 



1974. Morel, F. Vignes des jardins et raisins de table. [Garden vines and table grapes.] 

 Rev. Hort. 92: 219. 1920. — Attempts to produce grape vines resistant to attacks by fungi 

 and at the same time productive of high quality fruits are meeting with fair success. The 

 selection of new forms should be severe, retaining only the best. — E. J . Kraus. 



1975. PoPENOE, Wilson. The Colombian berry or giant blackberry of Colombia. Jour. 

 Heredity 11: 195-203. Fig. I-4. 1920. — An account of a hitherto unknown species of Rubus 

 from Colombia, South America, of great interest to horticulturists and fruit breeders. The 

 fruit sometimes reaches a length of 2j inches and the plant makes a strong vigorous growth. 

 The color of the berry is light crimson turning to a wine color when overripe. The quality 

 is not high but se ection may bring out superior varieties. While the species has not been 

 determined it was thought to be R. roseus. The plant prefers a moist, cool climate and will 

 probably be of most value in the southern states in the U. S. A. — M. J. Dorsey. 



1976. Rider, A. J. Studies in cranberry culture, Proc. Ann. Convention Amer. Cran- 

 berry Growers' Assoc. 51: 1-3. 1920. 



1977. Ross, J. C, AND S. W. Van Niekerk. The manuring of vineyards. Jour. Dept. 

 Agric. Union of South Africa 2: 163-169. 1921. — Various formulae, all calculated to supply 

 standard quantities of nitrogen, phosphoric acid and potash are given with costs. Attention 

 is called to the fact that different soils vary in fertilizing requirement and a simple plan is 

 s.uggested by which the vineyardist may test the needs of his own soils. On sour soil lime is 

 needed. — A. J. Pieiers. 



1978. Taboury, M. F. Injections dans les plantes pour augmenter leur rendement. 

 [Injections in plants to increase fruit returns.] Nat. Canadien 47: 145-146. 1921. — An old 

 pear tree which flowered but did not fruit was subjected to the following treatment: A little 

 above the ground the trunk was perforated to the vascular bundles, and a small glass tube 

 inserted communicating with 18 1. of a solution containing 19 gr. FeS04 and 10 gr. NaNOs; 

 the tree absorbed the solution in about 3 days. The following month the leaves were larger 

 and more vigorous than those of 2 untreated trees, and the tree produced numerous fruits, 

 while the control trees produced none. — In 1913, M. Calvino similarly employed on a sterile 

 pear tree the following solution: H2O 20 1., super-phosphate 5 gr.,K2S04 5gr., NaNOs 5 gr., 

 and FeS04 5 gr. The tree absorbed 50 1. of the solution just before flowering, with good efTect 

 in flowers and fruitage. A lilac grafted on privet and similarly treated, had a much more 

 vigorous and abundant bloom that usual. — A. H. MacKay. 



1979. Terry, H.B. Pruning of deciduous fruit trees. Jour. Dept. Agric. Union of South 

 Africa 2: 177-184. 1921. — Practical directions, with illustrations, for pruning so as to give 

 trees the "goblet" or ''vase" form said to be the best form for South African conditions. — 

 A. J. Pieters. 



1980. Tribolet, I. The pecan nut. Jour. Dept. Agric. Union of South Africa 2: 129-132. 

 1921. — The culture of the Recan nut is discussed and it is suggested that the growing of the 

 pecan might prove highly remunerative in parts of South Africa, especially in Natal. — E. M. 

 Doidge. 



