EPITOME OF EVIDENCE ON PLEURO-PNEUMONIA. 287 



otherwise the whole would go. We then inoculated other four- 

 teen ; one of these fourteen died within a few days, and the 

 remaining thirteen lived on through it to this day. The one 

 that died within a few days of being inoculated had pleuro, 

 but there was no more pleuro-pneumonia among them except 

 that. I have even better cases than that ; you will find them 

 in my report. 



SUMMARY OF EVIDENCE ON PLEURO-PNEUMONIA. 

 By Dr A. P. Aitken. 



The evidence contained in the preceding pages formed only a 

 part of the work undertaken by the Committee. It was evi- 

 dent to the Committee, as it must be to any one who care- 

 fully peruses the evidence, that very considerable difference of 

 opinion prevails among members of the veterinary profession 

 regarding many points of very great importance to stockowners 

 and to local authorities who are entrusted with the work of 

 suppressing the disease. 



The Committee were desirous of knowing what were the 

 opinions held by veterinary inspectors throughout the country 

 regarding some of these disputed points, and they accordingly 

 framed a schedule containing the following queries, and sent 

 copies to all the local authorities in the country, with the re- 

 quest that they should ask their veterinary inspectors to fill 

 them up and send them in to the Secretary of the Society : — 



1. How is this disease propagated ? 



2. How far in your experience have you known it to be carried, 



and what do you consider an infected area ? 



3. Have you known a case wherein this disease has been 



communicated to a healthy animal from its having occu- 

 pied such a place as a byre, truck, boat, pen, or field pre- 

 viously occupied by diseased animals ? 



4. In your experience have you known of this disease being 



conveyed to healthy stock by the clothes or persons of 

 attendants or others in charge of diseased stock ? 



5. How long in your experience has an animal suffered 



from the disease without its being detected ; in other 

 words, how long have you known the disease to be latent 

 in the stock ? 



6. Have you had experience of inoculation, and if so, is it 



such as to prove to your satisfaction that inoculation has 

 a protective influence against the disease ? 



7. Have you ever known a case where animals that had been 



