ENTOMOLOGY. 889 



applicahli- in tlu' deHtructioii of wcxilly aphis. On vduiiu: tn>es nr in situations where 

 the ai)pliration is practica))le, tobacco <hist and lime may be nseil with <r')<i<l effect. 

 A nnm1)er of natural enemies prey npon these species, especially the larv;e of 

 Chrysopa and IIemero)>ins. 



Notes on a Phytoptus, A. Ke.mpkl {BoI. Agr. Sao Paulo, 3. scr., 1902, No. 2, pp. 

 87-90, figs. 2). — The Plnitoptus fuchniw is said to be injurious to fuchsias and is 

 described as a new species. It is said to be closely related to P. oleironts. Consid- 

 erable difficulty will usually be experienced in combating this insect, on account of 

 the tender nature of the affected plants. 



Combating injurious insects by means of their natural enemies, K. Sajo 

 [J'romefhrm, 13 {1902), Nos. GG7, pp. 673-676, fig. 1; 668, pp. 689-692, figs. ^).— The 

 author presents a summary account of the results which have thus far been o})tained 

 in comlmting noxious insects by means of parasitic fungi and parasitic and predaceous 

 insects. 



Spray calendar, W. E. Bkittox and G. P. Clinton {Connecticut State Sta. Bnl. 

 142, j>j>. 19, figs. 4). — This bulletin is arranged in the form of an ordinary calendar 

 and contains formula? for preparing common insecticides and fungicides. The more 

 important economic plants are arranged in alphabetical order, with brief notes on 

 their insect and fungus diseases. 



Spray calendar, N. O. Booth {Missouri Sta. Circ. of Information 10, pp. 13). — 

 lirief notes are given on the efficacy of spraying and on methods of preparing fungi- 

 cides and insecticides. A brief spraying calendar is given indicating the time of 

 year and nature of the applications required for controlling the insect and fungus 

 diseases of common economic plants. 



Spray calendar, W. Lochhead {Ontario Agr. Col. and Expt. Farm Bui. 122, pp. 

 12, fig. 1) . — Formula' are given for the preparation of Bordeaux mixture, copper 

 sulphate, ammoniacal copper carbonate solution, potassium sulphid, Paris green, 

 poison bait, hellebore, pyrethrum, kerosene emulsion, tobacco decoction, whale-oil 

 soap, crude petroleum, lime wash, formalin, and carbon bisulphid. The chief ene- 

 mies of a number of the more common economic plants are mentioned, together 

 with remedies for comljating these pests. 



On the choice of a soft soap for hop spraying, C. Duncan {Agr. Stiulenf's Gaz., 

 n. ser., 11 {1902), No. 1, pp. 16-18). — The author presents notes on the means of 

 detecting and estimating resin in soft soap, and also on methods for determining 

 other constituents in these soaps with reference to their use and effectiveness in 

 destroying hop insects. 



Report of analyses of Paris green and other insecticides in 1902, L. L. 

 Van Slvke and W. H. Andrews {New York State Sta. Bui. 222, pp. 263-268). — 

 Analyses were made of 44 samples of Paris green, in which the amount of arsenious 

 oxid varied from 55.39 to 61.4 per cent, averaging 57.1; the amount of arsenic 

 soluble in water averaging 1.01 per cent. The quantity of copper oxid varied from 

 27.03 to 30.79 per cent, averaging 29.41. The average amount of arsenious oxid in 

 coml)ination with copper was 55.1. The results obtained during these analyses 

 indicate that the Paris green found on the market during 1902 was of a satisfactory 

 (|nality. 



Hypoderma bovis, F. Etchegoyhen {Bol. Sec. Fomento [Mexico'\, 1 {1902), No. 

 11, I, pp. /f8 1-487). — Notes on the appearance, habits, life history, and means of 

 combating this insect. 



Sheep gadfly {Jovr. Bd. Agr. [London], 9 {1902), No. 2, pp. 217, 218).— Notesare 

 given on the appearance and habits of (Estrus oris. In preventing the attacks of this 

 tly it is recommended that a mixture of tar and fish oil in equal j^arts be smeared on 

 the nose of the sheep. 



Injurious household insects, S. Lampa {Ent. Tidskr., 23 {1902), No. 2-3, pp. 



