

128 



EUGENE F. DU BOIS 



sumed. The results obtained by McLean in one of his cases are repro- 

 duced in Fig. 19. 



Where is the chlorin retained ? Numerous attempts to discover large 

 increases in the salt content of various parts of the body have failed. The 



CALCULATED 



NaCl GRAMS IN E4BODRS 



Fig. 19. Patient with lobar pneumonia studied by McLean. Before the crisis 

 the chlorid excretion was almost nil and the plasma chlorids far below the normal 

 level. After the crisis the chlorids in the blood rose sharply and the excretion of 

 salt jumped to 15 grams. At the same time there was an increase in the volume 

 of urine and a loss of weight. The solid blocks at the bottom of the chart show 

 the fluid intake, the blocks with diagonals, the output. The dotted line of "calculated 

 plasma chlorid" was derived from a formula by McLean. 



older analyses are well reviewed by Hutchinson and by Garrat. Peabody 

 has recently disposed of the hypothesis that much salt could be retained 

 by the skin, finding normal figures in the skin of pneumonia patients who 



