PART I.] Effects of Injecting Sero-sanguinolent Peritoneal Fluid. 123 



were easily re-established, and the dog rapidly recovered from the influence of the 

 chloroform. At first, it appeared to be very little affected by the injection ; but it 

 rapidly passed into a state of extreme depression, and died five hours after the 

 operation. 



A post-niortem examination was performed two hours after death, with the follow- 

 ing results. Rigor moi'tis had just begun to set in, but the tissues were still warm. 

 On opening the abdomen, there was found to be very marked peritonitis. There was 

 a large quantity of red fluid in the abdominal cavity. 



When a preparation of this fluid, mounted in a wax-cell, was examined an hour 

 after its removal from the body, it was found to be crowded with minute, slightly 

 moving bacteria and monads, and to contain masses of very small disintegrating pyoid 

 corpuscles, together with numerous free oil-globules. The preparation was kept under 

 observation for several days; but no further developments occurred, and the activity of 

 the bacteria gradually ceased. The intestines were rough and injected externally ; 

 but, when laid open, they did not show nearly so much of the prune-juice exuda- 

 tion as had been observed in other previous instances. The condition of the mucous 

 surface as regarded exudation closely corresponded with that observed in the case 

 of the dog into the peritoneal cavity of which decomposing beef-juice had been 

 injected (vide Experiment LXXII). The rest of the abdominal organs appeared to be 

 quite healthy. 



On opening the thorax, there was found to be well marked injection of the 

 pericardium, especially on its external surface ; but the pleurae, lungs and heart were 

 unaffected. A preparation of blood from the right ventricle was examined an hour 

 afterwards, and was found to be full of very minute active particles. No further 

 development of these bodies was detected during the subsequent few days in which 

 the preparation was preserved. 



Experiment T.XXV. — Chloroform having been administered to a strong healthy 

 pariah dog, an ounce of a decomposing solution of normal evacuation was injected 

 into the peritoneal cavity. The solution employed had been kept for six hours in 

 a wide-necked bottle which was loosely plugged with cotton-wool, in order to keep 

 flies and other insects out. 



The animal rapidly recovered from the influence of the chloroform and showed no 

 symptoms of pain or of cramps, but after some time it passed some bloody mucous 

 evacuations. 



It was killed with chloroform fourteen hours after the injection, and a post-Tnortem 

 examination was performed at once. On opening the abdomen, the peritoneum was 

 found to be intensely inflamed and thickened, and flakes of soft lymph were adhering 

 to the liver and other viscera. The cavity contained about a pint of sanguineous 

 fluid. A preparation of this fluid in a wax-cell was examined two hours subsequent to 

 its removal from the abdomen ; it was found to consist of a clear fluid crowded with 



