HORTICULTURE. 847 



The results of experiments in previous years are compared witli this season's results, 

 and the treatment of the rattoon and the plant crops considered separately. It is 

 shown that the amount of water used ranges from 93.5 in. for the crop of 1897-98 to 

 283.46 in., the maxinmm amount used for the crop of 1899-1900. In the rattoon crop 

 of this season 75.2 gal. of water were required to produce 1 lb. of sugar. This was 

 the maximum sugar production from a limited supply of water, l)ut it was shown 

 that the use of over 5,500,000 gal. per acre, which represent 101 gal. per pound of 

 sugar produced, was much more {jrotitable. 



Distance and fertilizer experiments with sugar cane, J. D. Kobus {Meded. 

 I'roefatnt. Ood Java, 3. ser., 1901, No. ^8, 2>p. 23). — The experiments here reported 

 were cooperative. The results of the distance experiments showed that on heavy 

 soils rows 3i ft. apart produced the largest yield and the highest percentage of sugar. 

 Four ft. between rows gave nearly as good results, but 3 or 4^ ft. were distinctly less 

 satisfactory distances. On light soil the influence of distance was less marked but 

 the results were again in favor of Si ft. between rows. 



The fertilizer tests confirmed i)revious results in indicating sulphate of ammonia to 

 be the most advantageous source of nitrogen for sugar cane. A test was also made 

 witli superphosphate and potash on lands not subject to flooding and hence not sup- 

 plied with these suljstances by sediment. The tabulated results show that the use 

 of fertilizers improved the quality of the cane and increased the yield by 40 per 



cent. H. M. PIETERS. 



Cane-sugar industry of Australia, W. Maxwell {Brisbane, 1901, pp. 16). — 

 Tliis i)ublicati(3n is a report upon some factors relating to the cane-sugar industry of 

 the country, and deals mainly witli laljor and factory 2)rol)lems. 



Proceedings of the sugar cane and cassava convention held at Brunswick, 

 Ga., April 9, 1901 {Atlanta: Foutc d: Davies Co., 1901, pp. 48). 



The sunflower, A. Fkiedrich {Die Sonnenblume. Leipsic: W. Friedrich, 1900, 

 Pl>. 19). 



Studies on the culture and biology of tobacco, C. J. Koning {Dcr Tabak; 

 Studien ilber seine Kidtur und Biologie. Leipsic: W. Engelmann; Amsterdam: J. H. & 

 G. Van Hrtcran, 1900, pp. 86, figs. 15). 



The production of tobacco in Italy from 1890 to 1899 {Rapprc.sentazione grafica 

 della 2>roduzioiie del tabacco in Italia, 1890-1899. Rome: Ministrn of Finance, pds. 19). — 

 This is a series of plates illustrating graphically the tobacco production of Italy for 

 the years 1890 to 1899, inclusive. 



Wheat culture, I. Giglioli {Ann. Regia Scnola Superiore A'gr. Portici, 2. set., 1901, 

 No. 2, pp. 159). — This publication presents the results of culture and fertilizer exj)eri- 

 ments with wheat on the experiment field of the agricultural school at Portici. 



Studies and researches on the wheat grain, and a process of sterilizing 

 and bleaching cereals and their flours, E. Fkichot {Eludes et recherches sar le 

 grain de ble, sairies d'un prorvde de steriUsalion et de blanchiment des ccreales et de leurs 

 farines. DreiLc: Author, 1899, pp. 235, figs. 24). 



HORTICULTURE. 



Cyclopedia of American horticulture, L. H. Baii.ky {Neic York: The Macmil- 

 lun Co., 1900-1902, vol. 1, A-D, pp. XXn+510, pU. 9, figs. 743; vol. 2, E-M, pp. 

 X/F+ 511-1054, pis. 10-19, figs. 744-1453; vol. 3, N-Q, pp. XV ^ 1055-1486, pU. 

 20-30, figs. 1454-2059; vol. 4, A'-/, pp. XXX -\- 1487-2016, pis. 31-50, figs. 2060-2800).— 

 This cyclopedia, recently completed, presents the status of American horticulture at 

 the close of the nineteentli century. There have been many puljlications in this 

 country on particular phases of horticulture, and in 1881 Henderson's one-volume 



25832— No. 9—02 4 



