THE PHYSIOLOGY OF ALIMENTATION. 549 



precision this minimum ration of albuminoids, or, as it may be said in 

 abbreviated fashion, to determine the quantity of albumen below "which 

 the organism perishes. Voit has indicated as the limit for man 118 

 grams of meat. This figure, however, is certainly too high, and may 

 be reduced to 100, to 90, or even to 70. But, on the other hand, the 

 most advantageous ration of albumen should be considerably above 

 that actually sufficient. 



It remains to mention several recent researches. The most impor- 

 tant of these by far are those which M. Chauveau has published upon 

 the reciprocal transformations of immediate principles in the organism, 

 according to its functional conditions and the circumstances of its 

 activity. We shall find a natural opportunity to speak of this at suit- 

 able length in treating of the physiology of the muscular contraction 

 and movement; in other words, the subject of muscular energetics. 



References: A. Chauveau, Recherches d'energe'tique biologique, Academie des 

 Sciences, 1856-1886-1891 to 1898. F. Laulanie, Energetique musculaire, 1898. I. Munk 

 et C. A. Ewald, Trait6 de Di6te"tique; Berlin. Bruxelles, Paris, 1897. J. P. Morat et 

 M. Doyon, Traite de Pkysiologie ; Paris, Masson, 1899. A. Dastre, cours de Sor- 

 boime, 1889-1896. Ch. Riebet et L. Lapicque, Dictionnaire de Physiologie, 1895. 

 Lainbling, Encyclopedic chimique, t. IX, 1897. 



