﻿STUDIES IN PLAGUE IMMUNITY. 

 Series 35 — Continued. 



231 



Animal 

 No. 



Immunized 



intraperitoneally 



with — 



Reinoculated with— 



Result. 



Autopsy and remarks. 



2012 



5 cc. Natural Ag- 

 gressin B, May 

 19. ' 



5 oesen suspension of 



"Pest Virulent" 



over abdomen July 



16. 



.do 



Dead July 26, 

 after 10 

 days. 



Pest bubo. Innumerable 

 pest bacilli in smears from 

 spleen. 



2013 

 2014 



do 



Dead July 25, 

 after 9 

 days. 



Alive 



Pest bubo. Very numerous 

 pest bacilli in smears from 

 spleen. 



4 cc. Natural Ag- 

 gressin B, May 

 19. 







2015 

 2016 



do - - 



do 



do 





2 cc. Natural Ag- 

 gressin B, May 

 19. 



do __ 



do 







2017 

 2030 



2031 

 2032 



2033 

 2034 

 2035 

 2006 

 2053 



2054 



do 



...do 



_— do 



Numerous pest bacilli in 

 smears from spleen. 



Do. 

 Pest. Typical bubo and 



spleen. 

 Typical pest spleen. Fair 



number of pest bacilli in 



smears from spleen. 

 Pest. Numerous pest bacilli 



in smears from spleen. 



Innumerable pest bacilli in 

 smears from spleen. 



Numerous pest bacilli in 

 smears from spleen. 



Innumerable pest bacilli in 

 smears from spleen. 



Comparatively few bacilli in 

 smears from spleen. 



3 cc. Natural Ag- 

 gressin C, May 

 20. 

 .do 



do 



do _ - __ 



Dead July 23, 

 after 7 

 days. 

 do 



do 



... do 



_ _do 



3.5 cc. Natural 



Aggressin C, 



May 20. 

 2.5 cc. Natural 



Aggressin D, 



May 20. 



__do- _ 



do 



Dead July 25, 



after 9 



days. 

 Dead July 24, 



after 8 



days. 

 Dead July 31, 



after 15 



days. 

 Dead July 26, 



after 6 



days. 

 Dead June 



22, after 4 



days. 



Dead June 



25, after 7 

 days. 



do 



do 



5 cc. Natural Ag- 

 gressin A, May 

 15. 



4.5 cc. Natural 

 Aggressin E, 

 May 21. 



do - 



.do. - 



Abdomen massaged 

 with portion of 

 spleen of guinea 

 pig No. 2124 on 

 June 18. 

 do 







CONTROLS. 



2140 

 2141 





Abdomen massaged 

 with portion of 

 spleen of guinea 

 pig No. 2124 on 

 June 18. 

 -do 



Dead June 

 25, after 7 

 days. 



Dead June 

 27, after 9 

 days. 



Innumerable pest bacilli in 

 smears from spleen. 



Do. 









And twenty- five other controls; all dead, 

 and 218.) 



(See Series 32 and 33, pp. 204 



