LYMPHATIC GLANDS. 347 



MINERAL SUBSTANCES IN 1000 PARTS OF THE DRIED SUBSTANCE 



NaCl 4.34 



Ca 3 (PO 4 ) 2 2.05 



Mg 3 (P0 4 ) 2 1.13 



FePO 4 1 . 06 



P0 4 9.16 



Na 0.68 



K Traces (?) 



MIESCHER obtained other results for the alkali compounds, namely, 

 potassium phosphate 12, sodium phosphate 6.1, earthy phosphate and iron 

 phosphate 4.2, sodium chloride 1.4, and phosphoric acid combined with organic 

 substances 3.14-2.03 p. m. 



In pus from congested abscesses which has stagnated for some time there 

 occur peptone (proteose), leucine and tyrosine, free fatty acids and volatile 

 fatty acids, such as formic acid, butyric acid and valeric acid. There 

 are also found chrondrin (?) and glutin (?), urea, dextrose (in diabetes), 

 bile-pigments, and bile-acids (in catarrhal icterus) . 



As more specific but not constant constituents of the pus must be 

 mentioned the following: pyin, which seems to be a nucleoprotein pre- 

 cipitable by acetic acid, and also pyinic acid and chlorrhodinic acid, which 

 have been so little studied that they cannot be more fully treated here. 



In many cases a blue, more rarely a green, color, has been observed 

 in the pus. This depends on the presence of micro-organisms (Bacillus 

 pyocyaneus). From such pus FORDOS and LUCRE 1 have isolated a crys- 

 talline blue pigment, pyocyanin, and a yellow pigment, pyoxanthose, 

 which is produced from the first by oxidation. 



Appendix. 

 Lymphatic Glands, Spleen, etc. 



The Lymphatic Glands. The cells of the lymphatic glands are 

 found to contain the protein substances generally occurring in cells 

 (Chapters I and VI). According to BANG 2 they also contain histone 

 nucleates (nucleohistone) , but in smaller amounts and of a different 

 variety from the better-studied nucleohistone from the thymus gland. 

 Proteoses occur as products of autolysis. By a lengthy autolysis of lymph 

 glands REH S found ammonia, tyrosine, leucine (somewhat scanty), 

 thymine, and uracil among the cleavage products. Besides the other 

 ordinary tissue constituents, such as collagen, reticulin, elastin, and nuclein, 

 there occur in the lymphatic glands also cholesterin, fat, glycogen, sarco- 

 lactic acid, purine bases, and leucine. In the inguinal glands of an old 



1 Fordos, Compt. rend., 51 and 56; Lucke, Arch. f. klin. Chirurg., 3; Boland, Cen- 

 tralbl. f. Bakt. u. Parasit., I, 25. 



2 Studier over Nucleoproteider, Kristiania, 1902, and Hofmeister's Beitrage, 4. 



3 Hofmeister's Beitrage, 3. 



