858 EXPEKIMENT STATION RECORD. 



As in ijrevious experiments the use of either phosphoric acid, potash, or lime in con- 

 nection with other fertihzers did not have a favorable influence on the sugar content. 

 Nitrogenous fertilizers retarded maturity and consequently reduced the sugar content, 

 but this loss was more than offset by the increase in yield. 



Sugar-cane culture {Netr York: (lerman Kali Work>^,pp.68,fig!^. 19). — This treatise 

 is a popular outline of sugar-cane culture in different countries. In this connection 

 climate, drainage, irrigation, varieties, seedlings, soils, and fertilizers are discussed, 

 and the composition of sugar cane and of different materials used in fertilizing the 

 soil for the culture of this crop is given. 



Fertilizer experiments with tobacco in Deli, D. J. Hissink {Meded. 'S. Lands 

 Pkuitentnin, 1902, No. GO, pp. 171). — Cooperative fertilizer experiments with tobacco 

 were carried on in 1901, and the results are here reported at some length. On well- 

 drained land and under favorable weather conditions the chlorin and sulphuric acid 

 given in the fertilizer showed no detrimental effect. The results on sandy soils con- 

 taining considerable humus indicate that in favorable seasons practically no fertilizers 

 were necessary. A small quantity of nitrate given each individual plant when set 

 out gave good returns. For clay soils the author especially recommends the use of 

 nitrogen in nitrate form. Phosphoric acid was found to be very effective upon Ijlack, 

 red, and clay soils. Although the tobacco plant contains but little phosphoric acid, 

 the Deli soils were most in need of this element. A fertilizer containing 10 per cent 

 each of potash and phosphoric acid is recommended for all soils. The nitrogen con- 

 tent of fertilizers for black and red soils, according to the author, should be from 4 to 

 5 per cent, and for claj' soils 5 per cent, with 0.4 of the quantity in the nitrate form. 

 In connection with 0.5 gin. of nitrogen and 0.75 gm. of phosphoric acid per plant 

 from 1 to 2 gm. of potash gave the best results. Analyses of the soils on which the 

 tests were made are tal)ulated. 



Agricultural botanical report for 1901, J. Eriksson (A'. Landt. AJcad. ILtndl. 

 TkUki'., 41 {1902), No. 2, pp. 112-134)- — A report is given of investigations on the 

 hardiness of different varieties of wheat grow'n at the experimental grounds of the 

 Royal Academy of Sweden, upon investigations of cereal rusts, etc. Of the 146 varie- 

 ties i)f winter wheat under observation from 1890 to 1901 the following foreign 

 varieties attained the highest rank: Urtoba, Graf Walderdorffscher, Kaiser, and 

 < irevenhagener. — f. av. woli,. 



Manual of tropical agriculture, H. A. A. Nicholls, trans, by II. Pittier 

 {Manual de agricultinxi tropical. Han Jose, Costa Rica: Tipografia Nacional, 1901, p]). 

 244)- — The English edition has been previously noted (E. S. R., 13, p. 1105). 



HORTICULTURE. 



Vegetable gardening in the mountain glades, L. C. Corbett and K. C. Davis 



( West Virgitiia Sta. Bui. SI, pp. o't<>-:iSi;, ph. <;). — The mountain glades of West Vir- 

 ginia are described as depressions at high altitudes in the Allegheny Mountains, vary- 

 ing in extent from a few to several thousand acres, into which the rich soil from the 

 surrounding elevations has been washed by mountain streams and rains. They are 

 usually wet and rather level. The soil is a muck rich in organic matter with some 

 line silt and underlaid with clay at a depth of 15 to 18 in. In its natural state it is 

 overgrown with alders and other bushes. When brought under cultivation it requires 

 drainage and will produce good crops of hay, wheat, corn, and buckwheat without 

 fertilizers. 



The work here recorded consists of records of the yields obtained on these glade 

 soils during 3 seasons with cabbage, onions, squashes, and celery. These crops were 

 grown with lime, complete commercial fertilizers in varying proportions, and barn- 

 yard manure, respectively. Some plats were left unfertilized for controls. The barn- 

 yard manure was used onlj' during the last 2 seasons. Complete cultural directions 



