CONTENTS. 



CHAPTER III. 



BETAINES 



PAGE 



INTRODUCTION AND SCOPE - i 



CHAPTER I. 



AMINES DERIVED FROM PROTEIN ----- .7 



SECTION 



1. The Putrefactive Decomposition of Amino-acids - 7 



2. Methylamine, Ethylamine, Dimethylamine - n 



3. Trimethylamine - n 



4. Isobutylamine - - - - - - - -12 



5. Isoamylamine - - - - 13 



6. Pyrrolidine - - - 13 



7. Amino-ethyl Disulphide - 13 



8. Putrescine and Cadaverine - - 14 



9. Agmatine ... - - - 16 



10. Phenyl-ethylamine - 16 



11. p-Hydroxy-phenyl-ethylamine - 18 



12. Hordenine - ... 20 



13. Indolethylamine (3-/3-Amino-ethylindole) - - 21 



14. y8-Iminazolyl-ethylamine - 22 



15. Physiological Properties of the Amines derived from Amino- 



acids - ... 25 



CHAPTER II. 



u>- AMINO-ACIDS AND OTHER BASES CONTAINING A CARBOXYL GROUP - 33 



SECTION 



1. /?-Alanine (/3-Amino-propionic Acid) - 34 



2. y-Amino-n-butyric Acid - - 34 



3. 8-Amino-n-valeric Acid - .35 



4. e-Amino-caproic Acid - - 35 



5. /3-Iminazolyl-propionic Acid - - 35 



6. Carnosine (Ignotine) - 36 



7. Urocanic Acid (Iminazolyl-acrylic Acid) - - 36 



8. Kynurenic Acid - 37 



39 



SECTION 



1. Betaine (Trimethyl-glycine) - - 40 



2. Physiological Properties and Importance of Betaine 42 



3. Stachydrine (Dimethyl-proline) - 43 



4. Betonicine and Turicine (Dimethyl-oxyproline) 44 



