658 EXPERIMENT STATION EECOED. 



7 {1909), No. -'i, pp. Ji5-53, figs. 2). — Directions are given for the use of tliis 

 insecticide, including descriptions of the apparatus to be used. A Ivuapsaclv in- 

 jector is illustrated. 



Spraying machinery, F. W. Faurot {Missouri Fruit Sta. Bui. 20, pp. 3-26, 

 pis. 12).— This discussion of spraying machinery is said to be based upon sev- 

 eral years' observations, field experience in the operation of a number of makes 

 of machines, and data obtained from mechanical tests relating to the efficiency, 

 convenience, and suitability of certain accessories. The author does not rec- 

 ommend any particular make or enter into the detail of the mechanics of vari- 

 ous machines but calls attention to those commendable or objectionable fea- 

 tures which in general make machines desirable or undesirable for use under 

 ordinary conditions. 



The use of the Beng'al bean in lime cultivations {Agr. Netcs. [Barhados], 



8 {1909), No. IS-'i, p. 15'i, fig. 1). — The discovery is reported that certain trees 

 which had been in a dying state for some time as a result of an attack by scale 

 insects were much improved in general vigor and freedom from scales after the 

 Bengal bean plant {Mucuna pruricns) had climbed over them and covered their 

 branches for a year or two. From extended trials then made with the bean 

 it is reported that good results always follow, and that the results are better 

 the more completely the beans cover in all the trees. Up to the present time this 

 has been tried only on limes that were badly infested with scale before the 

 beans were planted. One field which received this treatment some 7 years ago, 

 and has had no spraying or other treatment of a similar kind since, is remark- 

 ably healthy and free fi'om scale. It is considered probable that the cover of 

 beans maintains a more moist condition beneath and in this way encourages 

 the growth of the fungi which attack and kill scale insects. 



Animal parasites and diseases of the tea plant, C. Beknard {Bui. D<^pt. 

 Agr. Indcs XcrrlatHl. 1909, No. 23. pp. 1 ',8, pis. ,',).— Part 1 of this work (pp. 

 1-39) is a general report of preliminary observations of the animal and vege- 

 table parasites, including a bibliographical index. 



In part 2 (pp. 41-1-JS), the acarids which attack the plant.' including the so- 

 called red spider {Tctranychus hiocuilatus), scarlet mite {Brcvipalpiis obo- 

 vatus), yellow mite {Tarsonemus translucens), five-ribbed tea mite {Phytoptus 

 carinatus), and the pink mite {P. thcw), and the remedies therefor, are con- 

 sidered at some length. Next to the so-called mosquito blight due to species 

 of Helopeltis, the red spider is said to be the worst pest of the tea i)lant that 

 occurs in Java. 



Pwe-nyet and Indian dammars, D. Hooper {Ag7: Ledger, 1908-9, No. 3 

 {Vcg. Prod. Scr., No. 108). pp. 31-50, fig. 1). — This is a report on the quality of 

 resins known as pwe-nyet, which are formed by bees, particularly Melipona 

 {Trigona) Icrriccps, in building their nests. 



Silkworms and how to rear them, Mrs. J. South {Queensland Agr. Jour., 21 

 {1908), Nos. 3, pp. 135-11,2, figs. 9; 4, pp. 18J,-181, pi. 1, fig. 1; 5, pp. 226-228, 

 pis. 3, figs. 1). — A brief account, accompanied by illustrations of the apparatus 

 used in rearing silkworms. Several species besides Bomhyx mori including 

 the tusser {Antherea mylitia), muga {A. assama), and eri {Attacus ricini) 

 are considered. 



FOODS— HUMAN NUTRITION. 



Food products, H. Dugat and A. L. Girard {Les Produits AUmentaires. 

 Paris, 1908, pp. 378, figs. 11,8). — This volume is made up of four independent 

 publications bound together, the first dealing with animal products, the second 

 with vegetable products, the third with beverages, and the fourth with sugars, 

 cofi'ee, and tea. The production and manufacture of these food products, their 

 general characteristics, and other similar objects are considered. 



