236 CIRCULATING FLUIDS: 



Hence female blood differs materially from the blood of the 

 male in the amount of water and of blood-corpuscles.] 



On the differences of the blood, dependent on constitution. 



Denis concludes from his analyses that^ generally speaking, 

 the stronger the constitution is, the greater will be the amount 

 of solid constituents, and esjiecially of blood-corpuscles. If 

 age is also taken into consideration, my observations confirm 

 those of Denis. At equal ages, the blood in weak constitutions 

 is less abundant in solid constituents and hsematoglobuhn than 

 in stronger constitutions. 



On the differences in the blood, dependent upon temjperament. 



According to Lecanu,^ temperament has an influence upon 

 the composition of the blood. He infers from his analyses that 

 the blood of lymphatic persons is poorer in solid constituents, 

 and especially in blood-corpuscles, than that of persons of san- 

 guineous temperament, while the quantity of albumen is much 

 the same in both. The following table will illustrate these 

 views. 



On the differences in the blood, dependent on age. 



My own observations, which, hoAvever, chiefly refer to dis- 

 eased blood, lead to the conclusion that the blood of young 

 persons contains a larger proportion of solid constituents, and 

 especially of blood-corpuscles, than that of older persons. Lecanu 

 and Denis have, however, made this a poirt of especial inquiry, 

 and have extended their analyses over a wide range of ages. 



' Op. cit. p. 66. 



