1056 EXPERIMENT STATION RECORD. 



Washiiigrton State College spraying calendar for 1909, K. K. Rkattik and 

 A. L. Mii.ANDii! { \\'<isliiiitjl<)ii Sl<i. I'dimlar lliil. I.i, folio). — Directions f<jr the 

 preparation and nse of several insecticides and fnngicides for the treatment 

 of the more important insect fnnjjus enemies of plants are given in calendar 

 form. 



Cyanid as an insecticide, II. S. Woglum and W. Wood {Jour. Econ. PJiit., 1 

 (I'JitS), So. a, pp. ii.'iS-,lJ()). — The anthors report that a solntion of potassiinn 

 cyanid at the rate of 1 oz. to a jiailon of water when jjonred into a small pit at 

 the exit- of a burrow destroys ants to a depth of 11 ft. below the surface of 

 the soil. This solution can be prepared at a cost of from lA to 2 cts. per gal- 

 lon. It appears, however, to be injurious to plant life. 



Preliminary report on results of analysis of Paris green, F. D. Fuller 

 {Pcnn. Dcpt. Ayr. Bui. J 66, pp. 6). — Thirty-six samples of I'aris green bought 

 in the open market were analyzed and the results are here reported. These 

 sami)les represent the product of 30 manufacturing concerns. The amount of 

 arsenic calculated as arsenious oxid varied from r).").24 to 50.47 i)er cent with 

 an average of .'')().S2 per cent. . The amount of arsenic in water soluble form 

 calcuhited as arsenious oxid varied fn)m 0.7 to 2.52 per cent with an average 

 of 1.4S per cent. 



The economic entomologist in business, II. L. Fkost {Jour. Econ. Ent., 1 

 (lOOS), \o. 6, pp. 3o0-3o^). — The author calls attention to the great need of 

 commercial economic entomologists. While the business of caring for trees 

 has made tremendous advancement in the last 10 years, there are still many 

 problems to be solved that require the attention of the economic entomologist. 



FOODS— HUMAN NUTRITION. 



Report upon the chemical examination of drawn and undrawn poultry^ 

 kept in cold storage, W. F. IJoos (Ann. Rpt. Bd. llvallh Mnsn., ,i'.) ilUOl). pp. 

 263-283). — The author summarizes as follows the results of his studies on 

 drawn and undrawn cold storage poultry: 



" In cold storage itself no chemical changes occur. This is shown by : 



"(a) The absence, after nine months and more of cold storage, in both drawn 

 and undrawn cold storage fowl of ptomaines and decomposition products in 

 gon(u-al, excei)t such as are formed by bacteria and antolytic changes occurring 

 before the birds are placed in cold st(n-age and after they are thawed. 



"(b) The negative results of animal inoculations with extracts obtaininl from 

 the two kinds of poultry, 



" When fowl are taken out of cold storage and exposed to a temperature of 

 6S° F., the conditions of exposure being the same, the undrawTi birds show bet- 

 ter keeping qualities [than those drawn by the usual method], 



" When freshly killed fowl are exposed at (JS° F. under conditions constant 

 for all the birds exposed, the birds drawn according to the [improved] nii'thod 

 described . . . show perfect keeping qualities, while the undrawn fowl undergo 

 a rapid process of decomposition. I'nder these conditions the ordinarily drawn 

 birds show fair keeping qualities, although they are not free from bacterial 

 decomix)sitiou. 



" It may be concluded, therefore, from these results that it is best to draw 

 fowl in a different manner from that usually followed, before they are placed 

 in cold storage.. After removal from cold storage, the fowl should never be 

 contaminated by soaking in water, but should thaw in the air. Ordinary 

 drawing is worse by far than no drawing at all." 



Report upon the bacteriological examination of drawn and undrawn 

 poultry kept in cold storage, 11. R. Brown {Ann. Upt. lid. HaiUli Ma.ss., 39 



