324 EXPERIMENT STATION RECORD. 



a1)undHntl_v su])])li(Hl with cak-iuni carlwiiato tho phosphoric acid of 

 bone meal ha.s an iinportaiit value especially for fall application. The 

 bone meal, however, .should not be applied on freshly limed soils or 

 on those which are by nature rich in lime. The unfavorable results 

 obtained l)y Wagner and Maercker with hone meal are attributed to 

 the fact that these investigators experimented on soils which were rich 

 in lime or had been recently limed. 



Fertilizers {X<->r Jer.'<ey Stas. Rpt. 1899, pp. ^7-<95).— This is mainly 

 a n^print of Bulletin 139 (E. S. R., 11, p. 829), with the addition of 

 statistics of the fertilizer trade in New Jersey during 1898 and thir- 

 teen preceding years, the market prices of fertilizers, text of the 

 fertilizer law, and lists of inspectors and of manufacturers whose 

 goods were inspected in 1899. From data furnished by 912 out of 109 

 firms selling fertilizers in New Jersey in 1898 it is estimated that the 

 total consumption of fertilizers in the State was 60.091: tons, valued at 

 $1,569,061, in 1898, as against 56,172 tons in 1897. -'The complete 

 manures represent 70 per cent of the total number of tons sold in 1898 

 and 77 per cent of the total values of all sales." It will thus be 

 seen that the farmers of the State paid over $1,200,000 for complete 

 manures during 1898. The statistics reported show that there has 

 been a decline in the prices of complete fertilizers from 1885 to 1898, 

 but that this decline in price has not been accompanied by a corre- 

 sponding decrease in the absolute amounts of plant food delivered to 

 consumers. 



Some principles in the use of fertilizers, C. A. Mooers ( Tennessee Sta. Rpt. 

 1899, }>}>. 4')-'}0, fif/. 1). — A fieneral dis^cuHsion. 



Suggestions for the use of barnyard manure, V. WELLi.\(iTox {MmmchnmtU 

 State Bd. Agr. Rpt. 1899, pp. 301-315, pi. 1).—A fjeneral disfussion of this siu))ject 

 under the following headf: What barnyard manure is made of, how it compares 

 witli otlier manures, how to make it, and how to use it. 



On the fertilizer valuation of sewage, W. Breslek ( Detit. Zuckerind., 25 {1900), 

 No. 34, Sup. 1, pp. 1338, 1339). — Brief descriptions are given of various methods 

 which have been proposed for estimating the fertiUzing value of the sewage from 

 cities and factories of various kinds. 



Fertilizer inspection, C. D. Woods {Mnme Sin. Bui. 60, pp. 23-30).— ''This bulle- 

 tin contains tlic analyses of manufacturers' samples of brands of fertilizers licensed 

 before March 7, 1900," accompanied by brief statement of the chief provisions of the 

 State fertilizer law. The number of analyses reported is 131. 



Analyses of commercial fertilizers sold in Maryland, H. B. ^McDonnell et al. 

 (Mari/linid At/r. ( '<>/. Qiuirl., lUitO, Xo. 9, p}i. .io). — This l)ulletin contains a schedule of 

 trade values (jf fertilizing materials, tables of analyses and valuation of 404 samples 

 of fertilizers examined from March t(j .Tuly, 1900, inclusive, and a list of fertilizers 

 licensed for sale in the State during the year ending Fe])ruary 1, 1901. 



The composition and economical use of commercial fertilizers, H. .T. 

 Wheelek {Mmmrhusetts State Bd. Agr. Rpt. 1899, pp. 131-1G9). — A very thorough 

 general discussion of this subject. 



Cooperative experiments with fertilizers, C. A. Mooers {Tennessee Sta. lipt. 

 1899, jip. 53-36). — A plan of cooperative exi)eriments in different ])arts of the State 

 undei- su])ervision of the station is described. 



