LB. 169 



between the layers of its muscles. A number may be 

 present in this situation (W. G. Johnston has counted 21), 

 scattered over the part or several close together. Dr. 

 Gibson also mentions their occurrence on the rump, and 

 very rare instances in which they have been so numerous 

 and so widely distributed over the body that the carcase 

 has had to be condemned. Nodules have been noted just 

 above the hock-joint, on the stifle joint and on the outer 

 muscle of the thigh (silverside). Barnard and Park refer 

 to their "abscesses" being found in the throat and neck 

 and in the intestines, but, as our criticism elsewhere sug- 

 gests, we believe many of these to have been due to tuber- 

 culosis pure and simple. Sydney Dodd 1 mentions that the 

 nodules may be found in the connective tissues of any part 

 of the body, even in very deep seated situations. In the 

 camel we found them in the subcutaneous tissues of the 

 neck and under the tail. 



The presence of nodules is more common in old cattle. 

 Gibson states it is rare to find them in animals under four 

 years of age and in the Hereford breed of cattle. Barnard 

 and Park did not find any in beasts under two years of age, 

 from which they believe that the parasite takes a year or 

 more to develop. We have examined three small nodules 

 from a young calf, aged six to seven months, which came 

 from the northern rivers of New South Wales. 



The Economic Aspect.— The fibrous nodules, as usually 

 found, do not affect in any way the health of the beast. If 

 Barnard and Park's statements of the frequency of abs- 

 cesses of tubercular nature being superadded to the worm- 

 nests in cattle from the Burnett district of Queensland be 

 correct, however, then consequent conditions of ill-health 

 would supervene. We are disinclined to agree with them, 

 as already stated, and believe they were dealing with two 



1 Dodd, Queensland Agric. Journ., Feb. 1910, p. 86. 



