LYMPH. 



151 



caseine, and examine the solution with the spec- 

 troscope. One band and a doubtful second in 

 the positions of the other luteine bands, will be 

 perceived. 



A aBC D 



HH' 



Spectrum of intestine -luteine. 



The solution will deposit crystals of chole- 

 sterine. Examine also the ether and chloroform 

 solutions. 



Compare with the above a chloroform extract 

 of dried faeces of adults. It will give no band. 



Lymph. 1. Examine under the microscope; white 

 corpuscles and fat globules will be noticed. 



2. Allow fresh drawn lymph from a blister, or a 

 fistula of a lymph vessel to stand ; it will coagulate. 

 Kemove the coagulated threads by beating with a 

 bundle of twigs, and wash them with water. They 

 will be found to consist offibrine (see Fibrine). 



3. Strain the liquid and heat it to boiling. A pre- 

 cipitate of albumen in flakes will be produced. 



4. Filter ; to the hot filtrate add a slight excess of 

 dilute sulphuric acid; allow to cool, and shake re- 

 peatedly with small portions of ether. Evaporate the 

 ether to dryness, and digest with water. The part 



