No. 1, July, 1920] HORTICULTURE 145 



931. Hedrick, U. V., ami I.'. I). Anthony. Twenty years of fertilizers in an apple 

 orchard. New York Agric. Exp. Sta. [Geneva] Bull. 469:71 98. Fig. l. 1919.— A report 

 on an experimenl conducted in a cultivated orchard on heavy clay Loam soil al Geneva, N. V. 

 The results, as measured by the yield of fruit and tree growth, were, in general, bo contra- 

 dictory and inconclusive thai no conclusion of prad ical value could ^e drawn. — F. C. Stewart. 



932. Hume, II. Earold. Present day nursery problems. Amer. Nurseryman 33:146. 

 1919. — Among other problems confronting this group of horticulturists the writer discusses 

 the practicability of the Quarantine Acts of the Federal Eorticultural Board, and favors an 

 effort to grow ornamental and fruit stocks in America. — J. //. Gourley. 



933. Johnston, Earl S. An index of hardiness in peach buds. Amer. Jour. Bot. 6: 373- 

 379. Fig. 1-2. 1919— Sec Bot. Absts. 4, Entry 15S7. 



934. Little, James A. A tribute to the pawpaw. Trans. Indiana Hortic. Soc. 1918: 312- 

 319. 1 fig. 1919. — The horticultural characteristics of the tree and fruit are present <•']. 

 Trees may be grown from seed if shaded for 1 or 2 years and will bear in 6 to 8 years. Grafting 

 is feasible. Fruit is borne every year. Although not suitable for shipment, the fruit is 

 desirable for home use and local market. — Max W. Gardner. 



935. McClelland, T. B. Efecto de diferentes metodes de trasplantar cafe. [Effect of 

 different methods of transplanting coffee.] Porto Rico Agric. Sta. Bull. 22: 1-12. 1 -pi. 

 Span. ed. 1919. [Eng. ed. 1917.] — Tests were made to demonstrate the advantages and dis- 

 advantages of different methods of transplanting coffee seedlings. There were no appreciable 

 differences, in the case of year old seedlings with five to six pairs of leaves, between those 

 taken up with a ball of earth about the roots and those set out bare of earth. When the seed- 

 lings were left in the nursery eighteen to twenty months, however, an earlier growth and 

 increased yield resulted in the case of plants set out with a ball of earth over those removed 

 with roots free of soil. The increased growth was found to be from 12 to 43 per cent greater 

 and the yield doubled or tripled at the end of the second year. Recommendations for seed 

 selection, proper methods of pulping and drying the seed, care of nurseries, and a method of 

 transplanting to holes prepared in advance are given. — John A. Stevenson. 



930. Mercier, C. A. The electrification of seeds. Sci. Amer. 129: 142-143. 6 fig. 1919. 

 —See Bot. Absts. 4, Entry 104. 



937. Mieville, R. Culture des arbres frutiers d'Europe au Laos et au Tonkin. [Culti- 

 vation of European fruits in Laos and Tonkin.] Bull. Agric. Inst. Sci. Saigon 1 : 111-116. 1919. 



93S. Moore, James G. Some recent facts significant in horticulture. Rept. Iowa State 

 Hortic. Soc. 53: 00-73. 1918. — The author discusses inspection of fruit, the mutual relation- 

 ship of fruit growers, and emphasis on horticultural teaching. — L. H. Pammel. 



939. Oskamp, Joseph. Planting fruit trees. Trans. Indiana Hortic. Soc. 1918:323-328. 

 S fig. 1919. — Directions are given for choice of nursery stock, heeling-in, and planting, with 

 notes on varieties for Indiana. — F. P. Cullinan. 



940. Patten, Charles G. Pears where pears do not usually grow. Rept. Iowa State 

 Hortic. Soc. 53:299-300. . 1 pi. 1918. — Gives an account of pear trees on the state station 

 grounds at Charles City, among them the Chinese pears and the Pyrus ussurieusis. — L. II. 

 Pammel. 



941. Pearcy, Harry L. Science aids nature in causing barren trees to bear. Better 

 Fruit 14 4 :8. Oct., 1919. — A brief summary of the present status of the pollination ques- 

 tion of the sweet cherry in the Xort Invest. The work of V. R. Gardner of the Oregon Agric. 

 Coll. Exp. Sta. is epecially emphasized. — A. E. Murneek. 



BOTANICAL ABSTRACTS, VOL. IV, NO. 1 



