XIV CONTENTS 



11. Tissue Reconstruction from Dissociated Cells 



A. A. Moscona 197 



12. Cellular Differentiation in the Slime Mold 



Maurice Sussman 221 



13. The Role of Ribonucleic Acid and Sulfhydril Groups in 

 Morphogenesis 



Jean Bracket 241 



14. Regeneration in Vertebrates: The Role of the Wound 

 Epithelium 



Marcus Singer and Miriam M. Salpeter 277 



15. Insect Metamorphosis: An Approach to the Study of Growth 



Carroll M. Williams 313 



16. Growth in Size and Body Proportions in Farm Animals 



JoJin Hammond 321 



17. Vitamins, Antibiotics, and Growth 



Thomas H. Jukes 335 



18. The Pituitary Growth Hormone: Some Physiological 

 Considerations 



Ernst Knobil 353 



19. Steroids and Growth 



Victor A. Drill 383 



20. Steroid Hormones and Aging in Man 



Gregory Pincus 407 



21. Changes with Aging 



Ancel Keys 421 



/// — Plant Growth and Plant Communities 



22. The Biology of Plant Growth 



James Bonner 439 



23. Organization and Integration: Plant Cell Growth and 

 Nutrition 



F. C. Steward 453 



24. Growth and Development of the Inflorescence and Flower 



Claude W. Wardlaw 491 



25. Responses to Environmental Factors by Plants in the 

 Vegetative Phase 



G. E. Blackman 525 



