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CONTENTS 



GENERAL PART 

 INTRODUCTION 



The importance of chemistry for all biological research and particularly for 

 cellular physiology and pathology, 1. Classification of proteids, 3. 



CHAPTEE I 



PAGE 



REACTIONS OF ALBUMINOUS SUBSTANCES . . .5 



Colour Tests. Biuret-reaction, 5. Xanthoproteic - reaction, 6. Reaction 

 of Millon, 7. Lead -sulphide -reaction, 8. Molisch's reaction, 8. 

 Reaction of Adamkiewicz, Hopkins and Cole, 8. Liebermann's and 

 Cole's reaction, 9. Diazo-reaction of Ehrlich and Pauly, 9. Ehrlich's 

 glucosamin-test, 10. 



Precipitation Tests. By alcohol, 12; neutral salts, 12. By salts of heavy 

 metals, 13. By alkaloidal reagents, 14. Microscopic investigations, 16. 



CHAPTEE II 



DISSOCIATION-PRODUCTS . . . . . .17 



Primary dissociation-products, 17 ; historical account, 18-23 ; methods of 

 preparing and estimating : mono-amino acids, 23-26 ; diamino acids, 26. 

 Enumeration of primary dissociation-products and their classification, 

 27-28. The individual amino acids : Glycocoll, 28 ; alanin, 29 ; amino- 

 butyric acid, 30 ; amino-valerianic acid, 30 ; leucin, 31 ; iso-leucin, 33 ; 

 leucin-imide, 33 ; serin, 33 ; amino-tetrahydroxy-caproic acid, 34 ; 

 aspartic acid, 34 ; glutaminic acid, 35 ; amino-hydroxy-succinic acid, 

 36 ; amino-hydroxy-suberic acid, 36 ; diamino-acetic acid, 36 ; diamino- 

 propionic acid, 36 ; lysin, 37 ; arginin, 38 (guanidin, 38, and ornithin, 

 40); histidin, 41; diamino-trioxy-dodecanoic acid, 44; diamino-glutaric 

 acid, 44 ; diamino-adipic acid, 44 ; diamino-dihydroxy-suberic acid, 44 ; 

 diamino-oxy-sebacic acid, 45 ; caseanic acid, 45 ; caseinic acid, 45 ; a- 

 pyrrolidin - carboxylic acid, or prolin, 45 ; hydroxy - a - pyrrolidin- 

 carboxylic acid, or hydroxy -prolin, 46 ; phenylalanin, 47 ; phenyl- 

 ethylamin, 48; tyrosin, 49; oxyphenyl-ethylamin, 51; tryptophane, or 



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