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THE PARENTERAL INTRODUCTION OF PROTEINS 361 



Per cent, of protein in the blood serum before the 



injection of egg-white 10.50 



Per cent, of protein in the blood serum after the 



injection of egg-white 8.18 



Loss - > .".'/ , '... ,..,,-'. 2.32 



This experiment was repeated on a second animal with 

 the following results: 



Per cent, of protein in the blood serum before the 



injection of egg-white '. . . .9.33 



Per cent, of protein in the blood serum after the 



injection of egg-white 7.36 



Loss . 1.97 



In a third animal the following results were obtained: 



Per cent, of protein in the blood serum before the 



injection of egg-white 7.90 



Per cent, of protein in the blood serum after the 



injection of egg-white 6.30 



Loss . 1.40 



It appears from these figures that the injection of egg- 

 white intravenously in rabbits is followed by the disap- 

 pearance of an appreciable amount of the normal proteins 

 from the circulating blood. This confirms the finding of 

 Chiray. 



10. The injection of a large amount of egg-white intra- 

 venously in rabbits proves fatal. 



No. 1. 35 c.c. of undiluted egg-white filtered through 

 cotton was slowly injected into the ear vein. The respira- 

 tion was immediately embarrassed, and with a slight con- 

 vulsive movement the animal died before it could be removed 

 from the table. On opening the thorax the heart was found 

 to be still beating and irregularly distended. The right 

 side was dilated and filled with dark fluid blood. Markedly 

 anemic areas were plainly seen in the lungs. 



No. 2. 32 c.c. of the same was injected more slowly and 

 through a finer needle. The result was practically the same. 



