BY T. HARVEY JOHNSTON AND M. J. BANCROFT. 255 



to the continued heavy rain and as a result large numbers 

 of ticks were maturing on the cattle. Two of his cows 

 were noted as especially free from ticks. Sold March, 

 1918, to G. B. Wells, Eumundi, who reported (October, 

 1918), that neither this cow nor Rainbow had carried more 

 than an occasional odd tick while in his possession, though 

 both had not been dipped, sprayed or washed. 



Rosie, born July, 1915 ; dam, Primrose, by Robbie 

 — Jersey bull. A light red cow with yellow skin. (Clean, 

 November, 1916 ; clean, February, 1917 ; exudate extensive, 

 very ticky close to vulva, November, 1917 ; exudate slight, 

 clean, December, 1917. Stock book). 



24/G/16 : No mature ticks seen, exudate absent. 

 Examined twice daily from January 16th- February 11th, 

 1918. Males, unbloated females, nymphs and larvae were 

 always present in small numbers. Thirteen fully-matured 

 females were removed during this period. Exudate appeared 

 on the 20th January and the 10th February. March 18th- 

 24th : immature ticks abundant especially on the 

 escutcheon ; a few mature females were removed each day 

 and as many as 25 were collected on one occasion. June 

 7th : immature ticks fairly numerous, but condition as 

 regards ticks had improved since March. 



Seagull, bought from M. Bourke, Rosewood, 1911. A 

 light brindle Jersey- Shorthorn strain, with a j^ellow skin^ 



24/6/16 : Quite clean — exudation present. Examined 

 several times in paddock from January 16th- February 11th, 

 1918, but no ticks were observed. March, 1918 : in splendid 

 condition, absolutely no trace of ticks. June 7th : con- 

 dition unchanged in any way. Calved, September, 1918. 



Stormbird, bought from M. Bourke, Rosewood, 1911. 

 A dark brindle Jersey strain, with a dark yellow skin. 



24/6/16 : Examined at " Cudgeree " immediately on 

 arrival there after having been for several months in a ticky 

 paddock some miles away. Found to be free from engorged 

 ticks. Examined in the paddocks on several occasions 

 from January 16th- February 11th, 1918, no ticks were 

 found. March 19th-24th : one mature female was removed 

 from the escutcheon, otherwise very clean. June 7th : 

 perfectly clean. Calved, September, 1918. 



