662 EXPERIMENT STATION RECORD. [Vol. 36 



concentrations, and probably represents a compound formed by the union of the 

 enzym and the substrate preliminary to hydrolysis. The retarding influence 

 of maltose is shown to be relatively smaU and to vary directly as its concen- 

 tration. The relatively slow digestion of achroodextrin is again pointed out, 

 and a preliminary redetermination of its specific rotation made." 



Food supply orders [milling of flour] {Bd. Trade Jour. [London], 95 {1916), 

 No. 1043, pp. 570, 571). — Note is made of the percentages of flour which must 

 be obtained from wheats of various qualities, according to an order of the 

 British Government. 



Government control over flour, W. Jago {Nature [London}, 98 {1916), No. 

 2457, pp. 250, 251). — This article discusses the flour-milling order noted above, 

 especially with regard to the quality of the bread and flour produced and the 

 question of increasing the percentage of flour obtainable from the wheat. 



Elour standards, W. Jago {Nature [London], 98 {1917), No. 2464, p. 390).— 

 In increasing beyond a certain point the percentage of flour from a given amount 

 of wheat the author advocates the addition of flour derived from barley, maize, 

 rice, or oats, rather than the addition of wheat offal. While the flours from 

 barley and the other cereals mentioned show an absence of gluten, they do not 

 contain the proteolytic and starch-converting enzyms present in the whiter por- 

 tion of the wheat offal, which acts diversely on the gluten and starch of the 

 flour. 



Trichinse in pork and nematodes in butterfish in their relation to the im- 

 plied warranty in the sale of articles of food, C. W. Stiles {Jour. Amer. Med. 

 Assoc, 68 {1917), No. 9, pp. 685-687).— The author states that from the stand- 

 point of the zoologist the term " diseased " in the sense of the food laws should 

 be interpreted differently from its academic meaning, and that the terms " dis- 

 eased meat " and " meat from diseased animals " really mean meat which Is 

 likely to produce disease when eaten by human beings. In discussing the ques- 

 tion of implied warranty on the part of the food vendor, on the basis of this 

 Interpretation of the term diseased meat, he maintains that there is justifica- 

 tion for the vendor of live shellfish, chickens, fish, or other raw foods to assume 

 that the purchaser of these foods is under an implied guaranty to see that they 

 will be properly handled and prepared for reception into the stomach before 

 they are served as food. In discussing the sale of raw pork attention is called 

 to the facts that the absence of live trichinse in fresh pork can not be guaran- 

 tied by any known practical method of inspection and that if the pork is 

 properly cooked any trichinse present are killed and hence can not produce 

 disease. 



With reference to the nematodes which were found in some samples of butter- 

 fish, the author states that these fish should not be considered as diseased in the 

 above sense, since the encysted worms were present chiefly on the entrails and if 

 properly dressed and cooked the fish would not be liable to produce disease in 

 man, although from the standpoint of the fish themselves they were undoubtedly 

 diseased. 



[Analyses of] baking powder, A. McGill {Lab. Inland Rev. Dept. Canada 

 Bui. 360 {1917), pp. 25). — Analytical data are given regarding 213 samples of 

 commercial baking powders. 



Annual report 1916 Food and Drug- Department State of Tennessee, H. L. 

 EsKEW {A7in. Rpt. Food and Drug Dept. Tenm., 1916, pp. 22). — The activities of 

 the department during the year 1916 consisted in the inspection of hotels, the 

 testing of weights and measures, and the examination of 1,358 samples of mis- 

 cellaneous foods, drugs, and beverages. 



