PART I.] Effects of Injecting a Decomposing Choleraic Evacuation. 1 1 9 



less spherical corpuscles, identical in appearance, and probably also in nature with 

 those present in such abundance in the fluid after the active, vital, amoeboid 

 movements had ceased. The resemblance of such threads of soft lymph to the 

 flocculi contained in choleraic evacu'ations, cannot fail to strike any observer even 

 at the first glance. 



The mucous membrane of the stomach was healthy. The duodenum was also 

 normal in aspect, and contained a little bile. The jejunum and ileum presented 

 precisely the same phenomena as those present in the previous case, but to an even 

 more marked degree, as, towards the middle of the ileum, the cavity of the gut 

 contained tarry fluid in addition to the sanguineous coating of the mucous membrane. 

 Towards the lower extremity of the ileum the walls of the intestine appeared to 

 be considerably thickened. For a few inches above the ileo-coecal valve the tarry 

 coating was absent, and was replaced by a layer of the normal thick intestinal mucus. 



Specimens of these layers, and of the mucous membrane beneath them, were, 

 in this instance also, carefully examined under the microscope, and their nature was 

 found to be precisely similar. Here also the effusion had taken place without 

 impairing the integrity of the epithelial coat of the mucous membrane in the 

 slightest degree, the latter presenting a remarkably dry and firm aspect when 

 the exudative layer was peeled off from it, and it was most remarkable to observe 

 the very small number of epithelial cells which adhered to the latter in spite of the 

 violence involved in the separation. 



The large intestine contained a larger quantity of dark coloured fluid than was 

 present in the previous case, but the gut was not affected in any way equally with 

 the small intestine. 



The rest of the abdominal organs were congested, but showed no other lesions 

 of any kind. 



The bladder was full. 



The heart was healthy in appearance. A specimen of blood from the right 

 ventricle was mounted in a wax-cell. When examined, eight hours after preparation, 

 it was found to contain a considerable number of leucocytes, some of which were 

 of large size, whilst others were still exhibiting amoeboid movements. No distinct 

 evidences of the presence of bacteria could be detected, although they were especially 

 searched for with a ^th immersion lens, nor did any appearances of the development 

 of such bodies present themselves during the next four days, whilst the preparation 

 was kept under observation. 



Experiment LXX. — A large healthy pariah dog was put under the influence 

 of chloroform at 11-30 a.m., and one ounce of a watery solution of the sediment of 

 the choleraic evacuation employed in the two preceding experiments, and which had 

 now been kept for seven days, was injected into the peritoneal cavity. 



The animal appeared to be very little affected by the operation, had no rigors 



