CONTENTS. 



CHAPTEE I. 



PASE 



Introduction : Definition of Physiology — The Actions of Living 

 Matter — Cells and their Functions — The Function of the Sarcode 

 of the lowest Animals — Dual and Triple Functions of an Organ 

 — Law of Von Baer — Classification of the Invertehrata — Division 

 of Physiological Labour, &c. . . . . . i 



CHAPTER II. 



The .Chemistry of Protoplasm : " The Physical Basis of Life "— 

 Analyses of Albumin — Chemical and Physical Properties of 

 Albumin — Lieberkiihn'^ Formula for Albumin — Sohorlemmer 

 on the Synthesis of Albumin — Loew and Bokorny's Researches — 

 Researches of Reinke, . Mori, Kretzschmar, Griffiths, Schutzen- 

 berger, PaUadin, Schulze, and Kisser, on Albumin — Decomposition 

 Products of Albumin or Protoplasm— Latham's Formula for 

 Albumin — Spencer's Definition of Life, &c. . . .10 



CHAPTER III. 



Digestion in the Invertebrata : Digestion in gbnbbal — Modes of 

 Nutrition — Digestion in the Protozoa— Phosphorescence and 

 Digestion — Digestion in the Porlfera, Codenteruta, Echinudermata, 

 Trickosooliees, Nematoscolkes, Chcetognatha, Arthropoda, Polyzoa, 



