1019] RURAL ENGINEERING. 587 



against flies, Is very adhesive, rapidly dries up the sore, nnd the bitter Ingredi- 

 ent prevents the animal from biting itself, it prevents further Infestation with 

 larvae, and those already present become encysted and arc eliminated without 

 causing any damage. All the sores treated In this way hoc e rapidly cica- 

 trized. ( 'aro should be taken to renew the plaster as long as the slightest breach 

 in continuity of the surface remains. 



Notes on two species of nematodes [Gongylonema ingluvicola Ransom 

 1904 and Capillaria strumosa (Reibisch, 1893)] parasitic in the crop of 

 chickens. L. I >. WHABTON (-Jour. Parasitology, 5 (1918), No. 1, pp. 85-Z8, figs, 

 8).— The author has found two species of nematodes to occur In the walls . i 

 the crops of the chickens examined In the Philippines. The larger of the two, 

 which was found in about 40 per cent of all the chickens examined, was identi- 

 fied as G. ingluvicola, while the second or more slender species, which was 

 found in about 30 per cent of the chickens, was Identified as C. strumosa. 



Experiments in avian toxicology, 15. A. Gallaghkr (Jour. Ann r. Vet. Med. 

 Assoc, 54 (1919), No. 4, pp. 887-856). — This is a report of experiments under 

 taken with a view to determining the toxic doses for fowls of the more com- 

 monly used medicinal agents and of poisonous substances to which fowls not 

 Infrequently have access. 



" In general, fowls may be considered as having approximately the same sus- 

 ceptibility to toxic substances as medium-sized dogs. They are more resistant 

 to such substances as calomel, strychnin, and tartar emetic, and less resistant 

 to carbolic acid, salicylic acid, and potassium cyanid. 



" In treating outbreaks of disease in fowls it is of great advantage to employ 

 the drinking water as a vehicle for medicinal agents. It is shown that fowls 

 are not visibly affected by drinking solutions of bichlorid of mercury 1:6,000, 

 carbolic acid 1: 1,000, permanganate of potash 1: 500, and crude catechu 1: 500 

 for a period of IS to 21 days. 



" It is interesting to note that the crop not only serves as a reservoir for food, 

 but that absorption through its wall is very rapid, symptoms appearing In from 

 two to five minutes after the administration of such substances as ammonium 

 Chlorid in solution, potassium cyanid, and strychnin sulphate." 



Diseases transmitted by ticks, their classification, treatment, and prophy- 

 laxis, J. LioNiKRKs (Rev. Zootcc. 6 (1918), No. 61. pp. 72-84).— A paper pre- 

 sented at the Tenth International Veterinary Congress in 1914 (E. S. R., 34, 

 p. 575). 



Babesiosis and the Babesia parasite in Netherlands. A. VBIJBURQ {Tijdschr. 

 Dtergeneesk., 45 {1918), No. 19. pp. 535-549, pis. j: W, pp. 568-57$. pis. 3).— In 

 the course of this discussion of Babesia bonis an account is given of Ixodes 

 rieinus, which is the active agent in its transmission in Holland. 



RURAL ENGINEERING. 



Preliminary report on the improvement of marshlands in western Oregon, 

 W. L. POWKBS (Oregon Sta. Bui. 157 (1919), pp. 32. figs. 24).— It is pointed out 

 that there are 150,000 acres of marshland in western Oregon, including the 

 tide, overflow, and peat lands, for which drainage and improvement is feasible 

 and desirable from an agricultural, engineering, and economic standpoint. 



Drainage district procedure under the State drainage law is outlined, and 



the design and construction of dikes, tide boxes, outlet ditches, and pumping 



plants are briefly described. The design, installation, and early operation of a 



tile system on the diked tideland on the substation near Astoria is also recorded. 



114S7S°— No. G— 19 7 



