TABLE OF CONTENTS 



The Cell and Protoplasm. C. V. 

 Taylor 1 



Cell and Protoplasm Concepts : Histor- 

 ical Account. Edwin G. Conklin 6 



The Micromanipulation of Living 

 Cells. Robert Chambers 20 



The Walls of Plant Cells. Irving W. 

 Bailey 



31 



Chromosomes and Cytoplasm in Pro- 

 tozoa. H. S. Jennings 44 



Chromosomes and Genes. Richard 



B. GOLDSCHMIDT 56 



Cellular Differentiation and External 

 Environment. C. M. Child 67 



Cellular Differentiation and Internal 

 Environment. Ross G. Harrison 77 



Cell and Organism. Charles A. 

 Kofoid 98 



The Biochemistry of Micro-organisms; 

 an Approach to General and Com- 

 parative Biochemistry. C. B. van 

 NiEL 106 



The Structure of Viruses. W. M. 

 Stanley 120 



Structure and Function of Some En- 

 zymes. Hugo Theorell 136 



Plant Hormones. F. W. Went 147 



Vitamins. Albert Szent-Gyorgi 159 



Molecular Structure in Protoplasm. 



0. L. Sponsler 166 



Protoplasm and Colloids. L. V. 



Heilbrunn 188 



Structural Units in Cellular Physiol- 

 ogy. J. D. Bernal 199 



7347^ 



