BY T. HARVEY JOHNSTON AND M. J. BANCROFT. 243 



the COWS placed in a ticky paddock to test their resistance 

 to natural infestation. About this time Mi". Pound returned 

 from America and resumed charge. 



On arrival at Yeerongpilly on December 19th, 1912, 

 both cows were examined by officers of the Department 

 and found " to be covered more or less all over their bodies 

 with small sores, the result of the attacks of ticks. This 

 condition was pronounced on the escutcheon, udder and 

 dewlap." (Pound, 1914, p. 110). The cows with two 

 controls were then placed in a tick-infested paddock, the 

 property of Mr. Chambers, where they remained until 

 January 21st, 1913. During this period of 33 days they were 

 examined daily by Mr. Thorn and one of the assistants 

 and on two occasions were seen by Mr. Cory who reported 

 that " up to that period a few ticks which were developing, 

 were found on the cows "' (Cory, R.S.C., 1915, p. 51), 



A letter dated March 29th, 1917, and signed by H. 

 Chambers, Yeerongpilly, appeared in the Brisbane Daily 

 Mail, and Courier in which the writer stated, ,' . 

 I would like to place before the public certain facts which 

 came under my notice, with reference to two cows purchased 

 by the Queensland Government from Mr. Munro Hull for 

 the Experimental Farm at Yeerongpilly. These cows were 

 sent to my paddock on December 18th (20th ?), 1912, and 

 taken away on January 20th, (21st ?), 1913. During that 

 time an officer from the Experimental Farm and myself 

 examined them almost every day, and a very few small 

 ticks were found. These disappeared in a day or so. On 

 April 14th, 1913, one of the cows before mentioned was 

 again sent to my paddock and the other on April 24th. 

 No. 1 was taken away on May 12th and the other was taken 

 away on July 17th, or four weeks and 12 weeks respectively. 

 During that time only two very small ticks were found on 

 one of the cows, which disappeared as they had done 

 previously. The two cows were again sent to my paddock 

 on May 12th, 1914, and taken away on June 8th, no ticks 

 were found on them. My cattle were running with them 

 while they were in my care and mine were badly infested, 

 so much so that I was obliged most of the time to wash every 

 three weeks. I hold no brief for Mr. Munro Hull, and my 

 sole reason for writing this is that I am quite convinced, 



