POODS III MAX NUTRITION. 5 7 5 



trees were fumigated in .".<> minutes ami the other halt in 60 minutes. Wherean 

 excessive amount of cyanic! was used in an exposure of 60 minutes several trees were 

 killed by the gas. As a rule, however, the percentage of trees which « 1 i « *< 1 was no 

 greater than is ordinarily the case in orchard planting. 



In the fall experiments, peach trees appeared to be more resistanl than apple trees. 

 This was not true, however, in the spring work. Borne varieties of apple, for example 

 the Yellow Transparent, were more resistanl than others. The author- conclude 

 from these experiments that no injury occurs as a resull of fumigating dormanl apple 

 and peach nursery stock 2 years or more of age with the usual strength of hydrocy- 

 anic-acid gas. Apparently fumigation in the fall with an excessive strength of 

 cyanid is more likely to produce injury than in tin- spring. 



Orchard fumigation with hydrocyanic-acid gas, ('. Fulleb ( Natal Agr. Jour. 

 tin<l Min. Rec., 8 {1905), No. 7, pp. 697-7 IS, figs. 11). — Detailed directions an- given 

 for the combination of chemicals to produce hydrocyanic acid, the use of tents and 

 other apparatus for confining the gas, and the application of the method, particularly 

 to citrus trees. The results of experiments along this line are briefly summarized 

 and recommendations made in accordance with investigations already published in 

 this and other countries. 



Spray calendar {Bun. Rpt. Bd. Hort. Oregon, 8 (1905), pp. 49-74)-— -The purpose 

 of this as of other similar spray calendars is to make recommendations regarding the 

 (piestions when to spray, what to spray with, and how to spray. Some of the more 

 important insect and fungus pests are described for the information of fruit growers 

 and standard insecticides and fungicides are suggested for the control of these pest-. 



Bee culture, J. S. (in.Kii i.w | Ann. Rpts. Bd. Ag. Del, n. ser., 3-4 [1903-4). />/>■ 

 129-184, fig*. 4). — The social organization of bees is briefly discussed with notes on 

 various bee products. The value of bees is considered from the standpoint of honey 

 production and fertilization of fruits and other plants. Brief directions are given for 

 the care and management of bees. 



Sericulture in Madagascar, E. Prudhomme (Ayr. Prat. Pays Chauds, 5 {1905), 

 N08. 25, pp. 311-.! 25; 26, pp. 389-402; 28, pp. 50-65; 30, pp. 212-229, figs. 0).— An elab- 

 orate review is presented ^i the present status of sericulture in Madagascar. Seri- 

 culture,] education is briefly discussed. 



Detailed directions are given regarding the cultivation of mulberries of various 

 varieties and their use in feeding silkworms. The diseases of silkworms are consid- 

 ered and notes are given on their insect enemies. A historical account is presented 

 of the different races of silkworms and the comparative merit of races and various 

 crosses. The influence of the selection in breeding silkworms is also briefly considered. 



Diseases of the silkworm and means of combating them, (J. <i \m>\i:a (Com. 

 Par. Agr. [Mexico], Oirc. 21, pp. 16, figs. 8). — The common diseases of the silkworm 

 are described and notes are given on their economic importance and means of com- 

 bating them. 



FOODS -HUMAN NUTRITION. 



Food adulteration in Arkansas, .1. H. Norton (Arkansas Sta. H'3. ss. />/>. 77- 

 //8). — With a view t<» determining the extent of food adulteration in the open 

 market the station has collected and examined .">.">4. samples of canned vegetables and 

 fruits, catsups, dairy products, jams and jellies, baking powders, vinegar, soda water 

 sirups, etc. of these 166, or 47 percent, were adulterated or sophisticated. 



The bulletin contains, in addition to the analytical data reported, a discussion «.| 

 the importance of pure foods and what has been done to secure them, and also 

 includes an article by R. K. Dinwiddie on preservative drugs found in foods, which 

 discusses their physiological effect and similar topics. 



Report of the State food commissioner of Illinois, A. 11. Jones (Ann. Rpt. 

 state Food Comr. III.. 2 I 1901), pp. 968, figs. 8).— This volume contains the report of 



