80 BULLETIN OF THE 



knowledge of them may warrant. It is only by pursuing this 

 method that we can hope ultimately to acquire, with regard to the 

 phenomena of living beings, that power to predict, which is the 

 criterion of true science, and that power to control, which we so 

 sorely need. 



NOTES. 



1 George F. Barker — Some Modern Aspects of the Life Question. Address 

 as President of the Amer. Ass. for the Advancement of Science. Boston meet- 

 ing, August, 1880. Proceedings, Vol. XXIX, Part I, p. 23. 



2 Galen — Quod animi mores corporis temperamenta seqnantur, Cap. 3. 

 [Kuhn's Edit., T. IV, p. 772.] 



3 St. George Mivart — The Cat. London, 1881, p. 387. 



* First taught by J. R. Mayer — Die organische Bewegung in ihrem Zusam- 

 menliange mit dem Stoffwechsel : Ein Beitrag zur Naturkunde. Heilbronn, 

 1845. 



5 See, for example, M. Foster — Text Book of Physiology, 2d Edit., London, 

 1878, p. 355- 



6 Barker — op. cit., supra. 



7 See H. Senator — Unters. ilber die Warmcbildung und den Stoffwechsel, 

 Archiv. fur Anat. Phys. und wiss. Med., 1872, S. I. 



8 Foster — p. 368, op. cit., supra. 



9 L. Landois — Lehrb. der Phys. des Menschen, Vienna, 1879, S. 402. 



10 L. Hermann— Handb. der Phys., Bd. I, Th. 1, S. 242. 



11 Emil Du Bois-Reymond — Unters. ilber thierische Elektricitat, Berlin, 

 1848-60, and Gesammelle Abhandl. zur allgemeinen Muskel-und Ne7~venphysik, 

 Leipsic, 1875-77. 



12 Du Bois-Reymond — Ges. Abhandl., Bd. II, S. 243. 



13 Bernstein — Unters. ilber den Erregungsvorgang in Nerven-tmd Muskel- 

 systeme, Heidelberg, 187 1; also Du Bois-Reymond's Archiv, 1875, S. 5 2 ^> Her- 

 mann in Pfliiger's Archiv, Bd. X, 1875, S. 48. 



