BY T. HARVEY JOHNSTON AND M. J. BANCROFT. 259 



yellow skin. (Exudate ; condition prime, November, 1916, 

 November, 1917. Stock book). 



24/6/10 : Only a few immature ticks detected. This 

 cow was examined regularly from January 18th-February 

 11th, 1918, but only one matured female was observed. 

 A few immature ticks were noticed on several occasions. 

 Fresh exudate was seen on 25th, 26th January, 3rd, 6th, 

 and 8th February. March 19th- 22nd : three examinations 

 were inade, only one mature female was discovered, fresh 

 exudate was observed on 22nd. June 7th : a few immature 

 ticks were seen but no mature females or exudate. 



Zephyr, bought at Toowong, 1912 . Remained ticky 

 after vaccination. 24/6/16 : Examined immediately on 

 her return from several months' stay in a neighbouring 

 ticky paddock, — found to be ticky. Sold, 1917. 



Trampas II, born October, 1915; dam, Stormbird, 

 sire Trampas I. Blue roan bull, reared on " Cudgeree " 

 and has never been treated in any waj' for ticks. 



24/6/16 : Found to be free from engorged ticks. 

 Janiiary 16th- February 11th, 1918 : examined at intervals 

 and found to carry ticks in all stages including fully- 

 developed females, but the infestation was light and mainly 

 on the flanks. March, 1918 : in the same condition as 

 previous month. 



Young Stock. 



Bramble, born, November, 1916 : dam, Sweetbriar. 

 A young Jersey bull. Five examinations were made 

 between January 16th- February 9th, 1918. A few mature 

 female ticks (1-7) were removed on each occasion, while 

 patches of immature ticks and males were present on the 

 hind parts and scrotum. Two red-legged ticks {Rhipice- 

 phalus sanguineus) were removed from this animal. No 

 exudate was noticed. 



Lotus, born November, 1916 ; dam, Isis. A Jersey 

 heifer ; this young heifer was examined several times from 

 January 16th-February 9th, 1918, but very few matured 

 females were discovered ; immature ticks were present, 

 but the infestation was not very heavy. Dry yellow 

 exudate was observed on two occasions, while it was seen 



