J 4 Georgina Stveet : 



Europe. 



Investigations were continued in Italy, Austria, Switzerland, Ger- 

 many, Denmark, France, and Great Britain, but all enquiries from 

 those under whose notice the existence of worm-nodules, such as 

 O. gibsojii must have come, did they occur, were met with negative 

 replies. The genus Onchocerca is, however, represented in every 

 department of France by a species (0. bovis, Railliet et Henry, 1912) 

 (see Piettre, 1912, p. 509), which is found in as many as 95 per 

 cent, of cases inspected at Les Halles Centrales in Paris. Here 

 M. Piettre, their discoverer, who is in charge of the Veterinary 

 Laboratory, enabled me to see several examples of this infection. 

 These are, however, as already described by M. Piettre (Oct., 1912, 

 p. 537, etc.), much more like 0. reticulata of the horse in their 

 manner of occurrence, no nodular formation taking place. As 

 recorded and shown to me by him, 0. bovis occurs almost exclusively 

 in the region of the femoro-tibial articulation in the thickness of 

 the internal and external articular ligaments, and in the tendons, 

 generally nearer the tibial than the femoral surfaces. Two to five 

 worms, males or females, or both, lie coiled in and out of the 

 fibres, in the thickness of the ligaments and tendons, causing their 

 degeneration, though free parasites may be found between the syno- 

 vial membrane and the tendons. I have, therefore, not been able 

 to find any evidence of the indigenous existence of these worm- 

 nodules in Europe. 



United States of America. 



In a country of such extent as this, having a great range of 

 latitude and of climate, many of the Southern States occupied in 

 cattle-raising being similar in latitude to districts in the Eastern 

 Hemisphere where these nodules are found, it is credible that 

 one should find some form of worm-nodule similar to those found in 

 the latter hemisphere. 



Moreover, considerable interest attached to enquiries here on 

 account of the importation of " Brahman cattle " into South 

 Carolina in 1849 (Mohler and Thompson, 1911, p. 84), into Southern 

 Texas about the year 1880 (loc. cit., p. 81), and again in 1906 

 (loc. cit., p. 82-3), some at least being derived from districts in 

 which worm-nodules are now known to exist. 



The chances of discovery of anything of this kind here are very 

 considerable, in view of the admirable work of the Federal Bureau 

 of Animal Industry at Washington, D.C. — the Zoological division 



