558 



EXPERIMENT STATION RECORD. 



almost every instance was higher in the pulp than in the rind, and the potash was 

 invaria])ly higher in the rind. Except in one variety, the nitrogen was higher in the 

 rind than in the pulp. The fertilizing constituents in the whole fruit was as follows: 



Fertilizing constituents in pomelos. 



On the basis of this table it is estimated that the fertilizing constituents removed 

 in 10 boxes of pomelos, each containing 80 lbs., would be as follows: Phosphoric 

 acid, 0.4 lb. ; potash, 1.9 lbs. ; nitrogen, 0.88 lb., which would be replaced by an appli- 

 cation of 2.85 lbs. of acid phosphate, 3.8 lbs. of high grade sulphate of potash, and 

 5.86 lbs. of nitrate of soda. Commercial fertilizers are believed by the author to l)e 

 more satisfactory for fertilizing pomelo trees than barnyard manures. "Where large 

 amounts of organic fertilizers are used, 'dieback' will almost surely affect the trees, 

 and ammoniated fruit or fruit containing a large amount of ' rag ' and of poor shipping 

 and keeping quality is the result. " In fertilizing pomelos, the author considers it advis- 

 able to make at least 2 a*{5i)lications, one just before or at the time of the commence- 

 ment of growth, and the otherin summer, about the month of July. In some portions 

 of the State, where the roots of citrus trees continue to grow during the winter, it is 

 thought advisable to make a third application in the fall. 



" If nitrate of soda be used as a source of nitrogen it is best to apply it in 3 sepa- 

 rate dressings, in March, ^lay, and July, and the phosphatic and potash fertilizers 

 twice, as recommended al)ove." 



A new banana in the Kongo Free State {QueenslavdAgr. Jour., A' {1901), No. 5, 

 })p. 367, S6S). — A botanical description is given of a new banana in the Lower Kongo. 

 It has been given the specific name of Mimi gillelH. The plant grows from I5 to 2 

 meters high, is not stoloniferous, and completes its cycle of growth in 3 years. Dur- 

 ing the first year it remains low and forms only a few leaves, the second year it makes 

 its height growth, and the third it produces fruit. The leaves are 40 to 50 cm. long, 

 the flower spike about 40 cm. long. The plant is believed to belong to the group of 

 M. enseta. Its seeds approach in size those of M. Uvingstonia and M. proboscklea, and 

 like the first of these are rough; ])ut the new banana is nmch lower in height than 

 M. proboseidea, and in other ways widely distinct from it. 



Coflfee culture; influence of different manures, M. Koch {Rev. Cult. Coloniales, 

 8 {1901), No. 77, pp. 294-296). — A review of some Brazilian fertilizer experiments 

 with coffee, which seem to show that nitrogen is of value only when it is applied in 

 quantities proportional to the phosphoric acid and potash in the soil. A complete 

 fertilizer produced larger berries and grains than potash manures. Nitrogenous 

 manures, on the contrary, diminished the size of the berries and grains. 



The cultivation of cocoa in the West India Islands {Sci. Amer.., S4 {1901), 

 No. 23, p. 360, figs. 3). — A popular acconnt of present methods of growing and har- 

 vesting cocoa beans, with remarks on tlic i)ossibilities in the industry for investment. 



Trenching and subsoiling for American vines, R. DnBois and W. P. Wilkin- 

 son ( Vicluriu Dipt. Agr., Vit. S(((. Ruiherglrn, 1901, pp. 171, figs. iiO).— The necessity 

 for subsoiling or deep trenching in the reconstruction of European, Californian, and 



