20 EXPERIMENT STATION RECORD. 



Weight per bushel of diflferent fertilizing- materials, 11. von Feilitzen 

 {JSrciisL- Mosd-ii/l. Tiihhr., 17 {1903), X<>. ^', jk 104).— The following average figures 

 were obtained 1)y actual weighings of ordinary commercial fertilizers found in the 

 Swedish inarki-t: Xitrate of soda 100 11)S. per bushel, anunoniuiii sulphate 70 lljs., 

 20 per cent suiu-rpliosphate 80 lbs., Thomas phosphate l.')() lbs., kainit 100 lbs., 20 

 per cent potash 80 lbs., 37 per cent potash 80 lbs., muriate 75 lbs., lish guano 40 lbs., 

 steamed bone meal (10 lbs. — f. w. woi.l. 



Fertilizer inspection, C. D. Woods {Mabic Sta. Bid. 90, p}!. 25-40) . — This Inille- 

 tin contains analyses of 158 manufacturers' samples of fertilizers licensed before 

 March 1, 15)0.'], with notes on sources of fertilizing materials, valuation of fertilizers, 

 and the chief i)rovisions of the Maine fertilizer law. 



Analyses of commercial fertilizers, M. B. Hardin {South Carolina Sta. Bid. SO, 

 pp. 26). — This bulletin reports analyses and valuations of 177 samples of fertilizers 

 examined during the season of 1902-3, accompanied by information regarding the 

 valuation and composition of fertilizers and the laws and regulations relating to 

 fertilizer control in South Carolina. 



Commercial fertilizers, J. L. Hills and C. H. Jones ( Vermont Sta. Bid. 99, pp. 

 51-136). — This l)ulletin contains, in addition to analyses and valuations of 111 licensed 

 brands of fertilizers representing the output of nine companies, with comments 

 thereon, "a somewhat full discussion of several phases of the general subject of fer- 

 tilization, including nitrogen, phosphoric acid, potash, lime, salt, meaning of analy- 

 ses, guaranties, the valuation system, and a review of Vermont's use of fertilizers, 

 as shown by the census returns. 



"Ninety-six per cent of the brands examined met their guaranties and none failed 

 to afford a commercial equivalent thereof. The average fertilizer contained 10 per 

 cent more plant food than it was said to contain. The quality of the crude stock 

 used was found to be as a rule above reproach. The average selling price was S28.25, 

 the average valuation, $18.59. 



"Vermont uses half a million dollars' worth of commercial fertilizers annually. 

 The 'east side' uses three-fifths of this amount. The fertile Cham])lain Valley soil 

 and the more intense dairy husbandry of the 'west side' are probably factors in this 

 matter." 



Manures, E. J. Russell and F. T. Holbrook {Jour. Southeast. Ayr. Col., Wye, 1903, 

 No. 12, pp. 108-129). — Analyses of the following fertilizing materials available for 

 use in England are reported and discussed: Barnyard manure, guanos (nitrogenous, 

 phosphatic, ichaboe, meat, and fish), sewage sludge, rape-oil residue, cotton-seed 

 cake, husks of coffee berries, malt dust, bone, basic slag, superphosphate, greaves, 

 silk waste, horn shavings, carpet waste, cloth cuttings, shoddy, wool waste, wool 

 dust, hair, hair and wool, hair waste, horse hair, calf liair, American raljbit waste 

 (fur, eti'. ), fur waste, leather waste, rags (linen, silk, and flannel), flock dust, leather 

 dust, nitrate of soda, sulphate of ammonia, kainit, and lime ashes. 



FIELD CROPS. 



Report of the experimentalist, C. A. Zavitz ( (Mario Agr. Col. and Expt. Farm 

 Rpt. 1902, pp. 105-138). — The experiments here reported consisted largely of variety 

 and culture tests, which have mostly been in progress for some years (E. S. R., 13, 

 p. 1032). The work of the season is reviewed in general, and the improvement of 

 seed selection as indicated by the results of experiments is discussed. 



For 6 years oats, spring wheat, barley, and jieas have been grown separately and 

 in various combinations for the jtroduction of grain and straw. Taking the average 

 of 3 years with mixtures of oats and barley, the greatest yields of grain were as 

 follows: 1 bu. of oats and 1 bu. of barley, 2,201 lbs.; 1 bu. oats and IJ bu. barley, 

 2,178 lbs.; 1 bu. oats and .V bu. barley, 2,161 lbs. per acre. These mixtures and the 



