208 EXPERIMENT STATION EECOED. 



Analysis of candied lemon peel, F. Hartel and A. Kirchner (Ztschr. 

 Untersuch. NaJir. u. Gentissmtl., 22 (1911), No. 6, pp. 350-353; abs. in Analyst, 

 ■37 (1912), No. 430, pp. 20, 21). — Twenty samples of candied lemon peel were 

 examined with the following results : " Insoluble substances, 2.89 to 5.22 

 per cent; soluble extractives, 60.83 to 79.22 per cent; acidity (as citric acid), 

 0.04 to 0.2 per cent; sucrose, 14.3 to 48.5 per cent; starch sirup (anhydrous), 

 9.45 to 25.3 per cent; ash, 0.37 to 3.09 per cent; sodium chlorid, 0.02 to 0.09 

 per cent. 



The process of mauufacturiug candied lemon iieel is described. 



Technical drug studies by the division of drugs ( U. S. Dept. Agr., Bur. 

 Chem. Bui. 150, pp. 51). — The following studies are included in this publica- 

 tion: Examination of Hydrogen Dioxid Solutions, by L. F. Kebler, L. E. 

 Warren, and E. A. Ruddinian (pp. 5-23) ; The Purity of Glycerin, by L. F. 

 Kebler and H. C. Fuller (pp. 24-35) ; Notes on Two Important Alkaloidal 

 Reactions, by H. C. Fuller (pp. 36-40) ; The Separation and Identification of 

 Small Quantities of Cocain, by H. C. Fuller (pp. 41-44) ; The Determination 

 of Molybdic Trioxid, by B. Herstein (pp. 44-46) ; A Method for Testing Am- 

 monium Salts, by B. Herstein (pp. 47, 48) ; Character of Samples of Beeswax 

 Submitted with Bids, by L. F. Kebler and F. M. Boyles (pp. 49-51). 



Biocheniistry of colostrum, S. Engel (Ergeb. Physiol., 11 (1911), pp. Jf 1-103, 

 figs. 8). — This is a critical review of practically all the work done in regard 

 to the biochemistry of colostrum. It includes the colostrum of the cow, buffalo, 

 goat, sheep, horse, and man. 



Investigations in regard to the hemolytic power of cow's colostrum, W 

 KoBELE (Centbl. Bald, [efc], 1. AM., Orig., 61 (1912), No. 7, jyp. 561-5S9).— 

 The colostrum from some cows contains hemolytic amboceptor and comple- 

 ment. Hemolytic amboceptor is present the second day post partum. Indica- 

 tions for complement were noted up to the fifth day, but most often only to 

 the third day. 



According to this author, the hemolytic amboceptors and complement in colos- 

 trum are nothing else than constituents of the normal bovine serum which 

 have filtered through the blood vessels into the mammary gland. These bodies 

 are present in both the initial and end colostrum, and in practically the same 

 amounts. 



Note on the gravimetric estimation of phosphorus in milk, E. H. Miller 

 (Analyst, 36 (1911), No. J,29, pp. 519-583) .—" The conclusions drawn from the 

 results are that the usual methods of estimating phosphorus in milk — viz, (1) 

 By precipitating as magnesium ammonium phosphate after removing the lime 

 as oxalate, and weighing as magnesium pyrophosphate; (2) by precipitating as 

 magnesium ammonium phosphate in the presence of lime, holding the same in 

 solution with ammonium citrate, and weighing as magnesium pyrophosphate; 

 and (3) by precipitating as ammonium phosphomolybdate, dissolving and repre- 

 cipitating as magnesium ammonium phosphate, and weighing as magnesium 

 pyrophosphate — give results that differ from Carius's method only by about 

 0.01 per cent. In the case of concentrated and sweetened condensed milk and 

 milk powders it is evident, however, that it is pi'eferable to treat the milk 

 solids by Carius's method, and estimate the orthophosphoric acid in the solu- 

 tions so obtained. It might be mentioned that the close agreement between the 

 results seems to show that no appreciable quantity of phosphorus is volatilized 

 during the incineration of the milk. This has also been pointed out by Bordas 

 and Touplain" (E. S. R., 2.5, p. 713). ' 



Comparison of methods of sampling cream for testing, C. E. Lee and N. W. 

 Hepburn (Illinois ISta. Bui. 153, pp. 5'i3-574). — The purixjse of this iuvestiga- 



