Iiisacts and Parasitic Diseases. 87 



E.rjyeriment No. 13. 

 Sheep's ^vool, as above, but kept in cellar. 



Erjyerlmeiit No. IJf. 



A small Avooden box nieasiiriiig 6Jx4x3j in., containing one inch 

 of sheep-yard sweepings resting upon one inch of moist soil, the 

 top covered with muslin, placed on the Avooden floor of a shelter- 

 house in the sheep yard. 



E rperiment No. 15. 



A wire gauze cage 4 in. in diameter by 5 in. high resting on the 

 natural surface of a sh.eep-yard, Avhich was sheltered on one side 

 by a wall but otherwise exposed to all weather conditions excepting 

 the rays of the sun during the afternoon. 



Erperimeni No. 16. 



A piece of dry Eucalyptus tree trunk, 9 in. long by 2^ in. im 

 diameter, covered with loose bark divided lengthwise into tAvo seg- 

 ments and held in position by rubber bands, the Avhole standing 

 vertically upon a layer of moist sheep -pen sAveepings in a dish and 

 placed in the cellar. 



Erperimenf No. 17. 



As in No. 16, but placed upon a table on the laAvn, as in Nos. 7, 

 8, and 10. 



E rperiment No. 18. 



A square jar about 7 in. across the opening, containing about 

 2 in. of moist sheep-pen sAA^cjepings, and placed on the floor of a 

 shelter-house in sheep yard, as in No. 14. 



Details of these experiments are recorded in the folloAving state- 

 ment : — 



