CHAP. V.] THE LYMPH AND CHYLE. TRANSUDATIONS. 



229 



HI. ANALYSES OF CHYLE OF THE HOKSE, DOG AND MAN 1 . 



SEC. 2. THE LIQUIDS CONTAINED IN THE HEALTHY SEROUS 

 SACS. SYNOVIA. THE CEREBRO-SPINAL LIQUID. 



The internal surface of the serous sacs of the body, such as 

 the pericardium, the peritoneum, the pleurae, &c., is, during life, 

 moistened by a small quantity of a liquid which must be looked 

 upon as lymph. These serous sacs are, indeed, in direct communi- 

 cation with lymphatic vessels, and offer the most highly differentiated 

 examples of the lacunar origin of those vessels. 



After death it is usual to find in certain of the serous sacs, 

 especially in the pericardium, a small accumulation of the so-called 

 liquor pericardii ; its presence in them in quantity is, however, not 

 to be considered as affording any ground for the belief that such 

 accumulations exist during life, but is rather to be accounted for as 

 due to the changes in the circulation which immediately precede 



1 This Table is extracted from Hoppe-Seyler's Physiologische Chemie, pp. 595 and 

 596. Analyses I., II. and III. are by C. Schmidt; IV. and V. are previously unpub- 

 lished analyses by Hoppe-Seyler. VI. is the analysis of the chyle of a beheaded person. 



