1112 



EXPERIMENT STATION EECORD. 



The followiuj; t;il»lt> gives analyses of the uiaiiure of fowls under the ordinary 

 conditions of a poultry farm : 



CoiiiiKisiti(ju of poulfiji DKiintrc. 



The value and use of poultry manure are discussed as follows : " Fowl 

 excreta form a distinctly nitrogenous manure which stimulates vigorous growth 

 of the leaves, stems, and roots of plants generally as much as a dressing of 

 nitrate of soda or sulphate of ammonia. It contains, however, in addition to 

 nitrogen, an appreciable amount of phosphates and potash in a rapidly available 

 form, and on this account is a good complete manure. Its value as an all-round 

 fertilizer for all kinds of crops can be materially enhanced by mixing it with 

 mineral superphosphates at the rate of 1 part of the latter to 5 or G parts of the 

 fresh manure. 



" Such as have a demand for it in a pure state should spread it thinly ou trays 

 in a shed, so that it will dry and yet retain its elements. These trays can be 

 built in stacks. In tliis form fowl manure is valuable for farmers, fruit growers, 

 and gardeners alike. It is also used f(ir tanning. In the fattening districts of 

 southern England there is a demand for air-dried manure at £2 10s. to £3 [^V2 

 to .$15] i)er ton, which fairly represents its value, as it has usually a moderate 

 proportion of sand or earth mixed with it. Wherever feasible it should be 

 stored in a covered shed. When dried, the compost named above can be used 

 at the rate of G or 8 cwt. per acre cf cultivated or fruit laud. A useful plan is 

 also to mix 2 parts of moist poultry manure with 1 part of ordinary soil by 

 weight. In this case alternate layers should be made of earth and manure, 

 leaving the whole until both have dried, when it is ready for use." 



The fish guano industry of Norway, Maizi^res (Engrais, 22 (1907), No. 10, 

 pp. 229, 230). — The present status of this industry is. briefly reviewed and a 

 list of firms engaged in the business is given. 



The cultivation of vegetables and the utilization of Paris sewage, D. Rois 

 (Ah.s. ill Rrv. Grii. Agraii., ii. sci:. 2 {191)1), Xa. 1. pii. 11-1:i). — The use of 

 sewage in the culture of various vegetables on the sewage farm of Acheres is 

 described. 



The electro-chemical manufacture of fertilizers, E. F. Cote {Ann. Dir. 

 Hi/draiil. rt Aiiirlioi: Afji:, Min. Agi: IFiaiicr], 1906, No. 31, pp. 181-237, figs. 

 7). — This is a detailed discussion of the nature of water power and its most 

 efficient utilization in the production of electrical energy to be applied in the 

 manufacture of nitric acid, nitrates, cyanamid, copper salts, and other chemical 

 I)roducts, and in the liquefaction of air and the purification of water. The 

 article especially emphasizes the economic importance and possibilities of utiliz- 

 ing water power in the service of agriculture. 



