298 EXPERIMENT STATION RECORD. 



The artesian -waters cf South Dakota, J. H. Shepard (South Dakota Sta. Ept. 



ISO-:, I{ullettnf<, pp. 1-70, fuj^. J-j-— This is Bulletin 41 of the station (E. S. R., 7, p. 287) 

 bound with the Annual Report. 



Water analyses, E. E. Slosson ( ]Vyoming Sta. lipt. 1SD5, Appeu., pj). 09-141). — A 

 reprint of Bulletin 24 of the station (E. S. R., 7, p. 475.) 



Analyses of water, F. W. Morse (Xew Hampshire Sta. Rpt. 1894, pp. 122-125). — 

 Analyses with reference to potable (|ualitie8 of 6 samples of spring, well, and arte- 

 sian water are reported, together with analyses showing the fertilizing value of a 

 sample of water used for irrigation, and the amounts of nitrogen in different forms 

 in samples of rainwater collected at 13 different dates from July 19 to August 24. 

 The average results of the analyses of the rainwater were as follows: Free ammonia 

 0.0289, nitrogen as nitrates 0.009(3, and albuminoid ammonia 0.0213. 



Bacteriological investigation of the Sw^iss mineral springs, J. Wittlix (Centbl. 

 Bait, und Par. AUij., 2 (ISOi;), Xo. IS, pp. 579-583). 



Destructive effects of -winds on sandy soils and light sandy loams, with 

 methods of prevention, F. H. King ( Wisconsin Sta. Rpt. 1894, pp. 292-326, Jigs 

 16.)— X reprint of Bulletin 42 of the station (E. S. R., 6. p. 622). 



Reclaiming peat marshes, F. H. King (Amer. Afjr. (mid. ed.), 1896, July 25, p. 68). 



FERTILIZERS. 



A soil test with fertilizers, H. P. Armsbt {Pennsylvania Sta. 

 Bui. 35, pp. 25). — An account is given of an experiment with potatoes, 

 conducted by E. P. Lovett, jr., at Fallsington, Bucks County, Pennsyl- 

 vania, on j4^-acre plats. Nitrate of soda, muriate of potasb, and dis- 

 solved bone black were used singly, two by two, and all three together, 

 and compared with no fertilizer. 



It is stated that this experiment is reported by the station "both for 

 its intrinsic interest and especially as illustrating a method by which, 

 without much expenditure of time or money, the farmer may obtain 

 information of great value to himself regarding his own soil." 



The main resnlts are as follows : 



"A suitable combination of fertilizers as compared with an unsuitable one gave an 

 increased profit per acre iu 2 experiments of $47.24 and $.54.71, respectively. . . . 



"The use of nitrogen in a soluble form under favorable conditions paid an aver- 

 age profit of $.5.44 per acre. Uuder unfavorable circumstances, no increased crop 

 resulted and it was used at a financial loss of $7.14 per acre. 



" Phosphoric acid without potash gave an increased profit per acre in 2 experi- 

 ments of $2.90 and $7.72, respectively. 



" Potash without phosphoric acid gave an increased profit per acre in the 2 experi- 

 ments of $6.73 aud $17.39, respectively. 



'•Phosphoric acid and potash used together gave au increased profit per acre in the 

 2 experiments of $40.17 and $51.02, respectively. In other words, neither the potash 

 nor the phosphoric acid was able to produce its full effect except in the ])reseuce of 

 the other, and the profit per acre arising simply from using the two together instead 

 of separately amounted in the 2 experiments to $30..54 aud $25.91, respectively. 



''The average pf)tato fertilizer sold in Peimsylvania, as compared with the home- 

 mixed complete fertilizer used in these experiments, would have supplied but 44.4 

 per cent as much of the most needed element (potash), 148.8 per cent as mucii phos- 

 phoric acid, and 50 per cent as much nitrogen. 



