1096 EXPERIMENT STATION RECORD. 



Bees and the color of flowers, G. Bonnier (Compt. Rend. Acad. Sci. [Paris], 

 141 (1905), No. 24, pp. 988-994). — After carrying on numerous observations with 

 regard to the attraction of the color of flowers for bees, the author comes to the con- 

 clusion that the color of flowers does not exercise any apparent influence upon the 

 worker bee. 



Catalogue of the exhibit of economic entomology at the Lewis and Clark 

 Centennial Exposition, Portland, Oregon, 1905, E. P. Currie ( U. S. Dept. Agr., 

 Bur. Ent. Bid. 53, pp. 121). — This catalogue was designed to increase the usefulness 

 of the exhibit of the Bureau of Entomology in Portland by furnishing information 

 regarding the insects contained in that exhibit. The species represented were largely 

 the same as those shown at the St. Louis Fair, but some insects of interest only to 

 eastern localities were omitted. 



FOODS— HUMAN NUTRITION. 



Standards of purity for food products ( U. S. Dept. Agr., Office Sec. Circ. 17, 

 pp. 7). — The food materials for which standards are proposed include dried, evapo- 

 rated, canned, and preserved fruits and similar products, flavoring extracts, oils used 

 in the preparation of extracts, olive oil, cotton-seed oil, and other edible vegetable 

 oils, and table salt. 



A flavoring extract is defined as "a solution in ethyl alcohol of proper strength of 

 the sapid and odorous principles derived from an aromatic plant, or parts of the 

 plant, with or without its coloring matter, and conforms in name to the plant used 

 in its preparation. ' ' 



The various flavoring extracts described are intended solely for food purposes and, 

 it is pointed out, are not to be confounded with similar preparations described in the 

 Pharmacopoeia for medicinal purposes. 



This publication supplements a circular previously noted (E. S. R., 16, p. 894). 



Legislation regulating the sale of foods (Rev. Soc. Set. Hyg. Aliment., 2 (1905), 

 No. 6, pp. 467-640). — A summary of laws regarding the regulation of foods, pre- 

 viously noted, is continued (E. S. R., 17, p. 59). The present installment includes 

 Holland, Spain, Portugal, Sweden, Denmark, France, and the United States. 



The microscopy of vegetable foods, A. L. Winton (New York: Joint Wiley & 

 Sons; London: Chapman d- Hall, Ltd., 1906, pp. XVI + 701, figs. 589).— This volume, 

 which was prepared with the collaboration of J. Moeller, summarizes the results of 

 a large number of original investigations on the histology of products of vegetable 

 origin, and is designed for the use of food analysts, agricultural chemists, pharma- 

 cists, and others engaged in the examination of foods, as well as the physician who 

 may be called upon to identify vegetable substances in stomach contents and feces. 



It has been the author's aim to make the volume comprehensive and to have it 

 cover the important vegetable foods used by man and domestic animals, and to pre- 

 sent the material in such form that it will be available for ready reference. In 

 preparing the work the author states that leading authorities have been consulted 

 and "credit has frequently been given for important discoveries, although so far as 

 possible the writer has based his descriptions on his own observations." Laboratory 

 equipment, methods, and general principles relating to the microscopical examina- 

 tion of vegetable food products are discussed. 



The materials described and illustrated include grain and its products and impuri- 

 ties, oil seeds and oil cakes, legumes, nuts, fruit and fruit products, vegetables, 

 alkaloidal products and their substitutes, spices and condiments, and commercial 

 starches. The illustrations, very many of them from original drawings, are a special 

 feature of the volume and add much to its value. A bibliography, glossary, and 

 index are included. The volume as a whole is an important contribution to the sub- 

 ject of vegetable histology, which, both as a pure and applied science, has hitherto 

 been taken up almost exclusively by European investigators. 



