364 EXPERIMENT STATION RECORD, 



Tlie results showed that the citric acid solutions were much more active than 

 the lemon solutions, though their acid flavor was about the same. The length 

 of time the solution was in contact with the container also exercised a marked 

 effect, much more of the zinc being dissolved on the second and third day than 

 on the first. Considering both lemonade and citric acid solutions, a range was 

 noted of from 0.0815 gm. zinc sulphate per 100 cc. in the case of a sample of 

 lemonade kept in a container 24 hours to 3.032 gm. in the case of lemonade in 

 contact with the container for 72 hours. "As the dose of zinc citrate runs from 

 0.2 to 0.8 gm., it is evident that a person drinking an ordinary ' schooner ' of 

 this lemonade would be taking into his system a very large dose of this salt." 



The state board of health accordingly issued a rule forbidding the use of 

 zinc-coated metal containers in the manufacture and storage of acid drinks. 



Concerning preservatives, A. J. J, Vandevelde and H. P. Wijsman {Cliem. 

 Weekbl., 7 {1910), No. 26, pp. 573-587).— A summary and digest of data. 



Notices of judgment (U. 8. Dept. Agr., Notices of Judgment 649, pp. 4 J 65i- 

 653, pp. 2 each; 654-655, p. 1 each; 656, pi). 2; 657, p. 1; 658-660, pp. 2 each; 661, 

 pp. 5; 662, pp. 2; 663-668, p. 1 each; 669, pp. 2; 670-672, p. 1 each; 675-678, p. 

 1 each; 679, pp. 2; 681, pp. 2; 682, p. 1; 683, pp. 2; 684, p. 1; 685, pp. 2; 686- 

 687, p. 1 each; 688-690, pp. 2 each). — These notices of judgment have to do with 

 the adulteration of olives, ice cream cones and ice cream clams, canned tomatoes, 

 catsup, fish, desiccated egg product, macaroni, " crystal eggs," and desiccated 

 eggs ; the misbranding of cheese, egg macaroni and egg noodles, olive oil, pep- 

 per, molasses, coffee, lemon flavoring, and vinegar; and the adulteration and 

 misbranding of vinegar, lemon flavor, vanilla flavor, vanilla, orange, and lemon 

 flavoring extracts, vanilla flavoring jjowder, calcium acid phosphate, eggs, 

 brandy, and " Yando egg noodles." 



The bacterial condition of protected and unprotected foods at restaurants, 

 meat markets, grocery stores, bakeshops, and fruit stores, H. E. Barnard 

 (Ann. Rpt. Bd. Health Ind., 27 (1908,), pp. 517-523, pis. //).— From his experi- 

 mental work the author concludes that foods kept in glass cases were in every 

 case practically free from dust and accompanying bacteria, while food on ex- 

 posed tables and racks was surrounded by air heavily laden with dirt and bac- 

 terial life. It was also shown that cleanliness of floors and utensils lessened to 

 a certain extent the number of bacteria present, and that on the contrary 

 counters and stands near sidewalks are always surrounded with atmospheric 

 dust and dirt. 



The author's studies were concerned chiefly with the relative number of bac- 

 teria found on the culture plates inoculated under different conditions and the 

 types of bacteria were not thoroughly differentiated. " But there can be no 

 doubt that they were varied and included both harmless and injurious forms, 

 originating in the manure of the streets, the spittle from diseased lungs and 

 nasal passages, and in evei'y other form of the waste products of men and 

 animals." 



[Diet in a students' boarding home, University of Minnesotal, P. R. Kel- 

 LAR (Cooking Glut) Mag., 12 {1910), No. 11, pp. 10, 11). — Information is briefly 

 summarized regarding food at the college commons, University of Minnesota, 

 where the author states that board is supplied at 22 cts. per man per day. 

 [From the data given regarding typical menus for breakfast, dinner, and sup- 

 per, it was calculated that the food supplied 105 gm. protein and 3,715 calories 

 of energj^ per person per day.] 



Dietary studies of undernourished school children in New York City, E. M. 

 Sill {Jour. Amer. Med. Assoc, 55 {1910), No. 22, tip. 1886-1891).— The author 

 briefly reports the results of 28 studies of families with malnourished children 



