109 



manure from the pits as required after 15 days' composting and mixing 

 it thoroughly with an equal quantity of fresh earth and vising it at 

 once as a top dressing, three inches thick. Borax has also been used 

 with success. A system for killing larvae in all stables in Panama 

 every three weeks has been instituted, and a fine is imposed on anyone 

 on whose premises flies are found breeding. 



Troop (J.). Entomology. — 33rd Ann. Rept., 1919-20, Purdue Univ. 

 Agric. Expt. Sta., Lafayette, Ind., 1920, pp. 22-23, 2 figs. 



The mite, Liponyssus silvarum, is recorded as infesting poultry. 

 Various dips, as well as dusting with sulphur, proved successful against 

 this pest. For the treatment of a whole flock fumigation with nitro- 

 benzol is advocated. This method does not injure the birds, but it 

 must not be applied to laying hens, as the inhaled fumes apparently 

 render the unlaid eggs unfit for domestic purposes. 



Mason (F. E.). Colocynth Tar (Ar. Zeif el Handal), its medicinal Uses, 

 with particular reference to the Cure of Scabies. — Agric. Jl. 



Egypt, Cairo, x, 1920, pp. 48-53, 2 plates. 



Colocynth tar, obtained by heating the seeds of the colocynth gourd 

 {Citrullus colocyntliis) , hdiS been foimd to be an effective remicdy against 

 mange in camels produced by Sarcoptes scahiei cameli. One appli- 

 cation proved sufficient to cure psoroptic mange in equines, in which 

 it will also cure sarcoptic mange. It is also efficient against ticks. 

 The methods of preparation and application are described. 



Richardson (U. F.). Annual Report of the Chief Veterinary Ofl&cer. 



— Uganda Dept. Agric. Ann, Rept. 1919-20, Entebbe, 1921, 

 pp. 35-39. 



Stomoxys spp. were extremely numerous during May and June 1919, 

 and a large number of cattle died as a result of worry from these 

 flies. Trypanosomiasis has been encountered in almost every district 

 in which work has been carried on, and some herds of transport cattle 

 were almost completely wiped out. They have been replaced, and 

 since dipping was begun in July, no further cases have been recorded. 



MoHLER (J. R.). Report of the Chief of the Bureau of Animal Industry 



[1919-20].— r/.S. Dept. Agric, Washington, D.C., 1920, 69 pp. 

 [Received 27th April 1921.] 



During the year ended 30th June 1920 the Field Inspection Division 

 supervised 9,515,720 dippings for the purpose of eradicating scabies 

 in sheep, and 1,657,418 dippings for scabies in cattle. Against the 

 cattle tick {Boophilns annnlatus) 35,045 dipping vats were in operation 

 and 44,813,070 inspections or dippings were made, as compared with 

 the previous year [R. A.E., B, viii, 98]. Areas aggregating 50,555 

 sq. miles have been freed from ticks and released from quarantine 

 during the year. So far, 70 per cent, of the original infested area 

 has been released since 1906. The remedial measures advocated for 

 the control of pig lice and pig mange have already been noticed [loc. cit. 

 200]. Repeated applications of lime-sulphur dip or crude petroleum 

 proved effective for the eradication of light cases of sarcoptic mange 



