66 



INDEX 



Glycyl-glycine ester, 22. 



group, 22. 



leucine, 37. 



1-leucine anhydride, 55, 57. 



1-phenylalanine, 27. 



1-tyrosine, 24, 25, 40, 46, 48. 

 anhydride, 24, 55. 



valine anhydride, 56. 

 Grimaux's investigations, 5. 



HEPTAPEPTIDE, 31, 34. 

 Hexapeptide, 25, 31, 34, 40. 

 Hippurazide, 9. 

 Hippuric acid, 8. 

 Hippuryl-alanine, 10. 



alanyl-alanine, 10. 



aspartic acid, 10. 



asparagyl -aspartic acid, n. 



aspartyl-glycine ester, n. 



azoimide, 9. 



chloride, 32. 



disaspartyl-aspartic acid hydrazide, n. 



glycine, 8, 9. 



hydrazine, 9. 

 Hofmeister's summary, 1-3. 



LACTAM, 18, 35. 



Lactim, 18, 35. 



Lactimide, 22. 



Leuceines, 5. 



Leuchs on glycine carboxylic acids, 17. 



Leucine anhydride, 23, 25. 



configuration, 39. 

 Leucinimide, 22, 23, 56. 

 Leucyl-alanine, 23, 40, 43, 44. 



asparagine, 28, 37. 



diglycyl-glycine, 31, 34. 



glutamic acid, 56. 



glycine, 25, 28, 34, 40, 43, 45. 



glycyl-glycine, 28, 31. 



leucine, 23, 25, 27, 28, 43, 45. 



phenylalanine, 36. 



proline, 28, 40, 44, 45. 

 anhydride, 25. 



tyrosine, 28, 40. 



valine anhydride, 56. 

 1-Leucyl-l-leucine, 27, 28, 34, 44, 45. 



octaglycyl-glycine, 31, 34. 

 Lilienfeld's investigations, 6. 

 Linking of amino acids, i, 8. 



MODES of combination of amino acids, i. 

 Molecular weight of octadecapeptide, 32. 

 proteins, 32. 



NASSE'S suggestion, i. 



OCTADECAPEPTIDE, 31, 40. 

 Octaglycine anhydride, 7, 24. 

 Octapeptide, 34, 41. 

 Octaspartic acid, 4. 

 Octaspartide, 5. 

 Optical activity, polypeptides, 36. 



PANCREATIC juice, action on polypeptides, 43. 

 Partial racemism, 37. 

 Pentaglycyl-glycine, 24, 31. 

 Pentapeptides, 29, 34, 40. 

 Pepsin, action on polypeptides, 46. 

 1-Phenylalanyl-glycine, 27. 

 Phenylcarbamino-glycine, 13. 



diglycyl-glycine, 13. 



glycyl-glycine, 13. 

 Polyaspartic acids, 4. 



ureide, 5. 

 Polypeptides, 22. 



action of nitrous acid on, 42. 



enzymes on, 43. 



organ extracts on, 47. 



pancreatic juice on, 43. 



pepsin on, 46. 



press-juices on, 47. 



trypsin on, 43. 



biuret reaction, 41. 



configuration of, 36, 45. 



copper salts, 41. 



derivatives, 42. 



esters, 42. 



hydrolysis, 42. 

 by enzymes, 43. 



List I., 25. 

 II., 28. 



HI., 34. 



point of attack, 51. 



present in proteins, 54, 56. 



properties, 40. 



rotation, 41, 51. 



solubility, 40. 



structure, 35. 



synthesis I., 22. 



II., 26. 



III., 30. 



taste, 40. 

 Prolyl-alanine, 27. 

 Pseudo-peptone synthetique, 5. 



SCHAAL'S investigations, 4. 

 Schiff on biuret reaction, 2. 



polyaspartic acids, 4. 



Schutzenberger's investigations, 5. 

 Selective action of enzymes, 47. 

 Sericoin, 54. 



Siegfried's investigations, 16. 

 Silk-fibroin; 54. 



TETRADECAPEPTIDE, 31, 34, 40. 

 Tetraglycyl-glycine, 29, 45. 

 Tetrapeptides, 29, 30, 31, 33, 34, 56. 

 Tetraspartic acid, 4. 

 Triglycyl-glycine, 29. 



ester, 7, 44, 45. 



Tripeptides, 23, 30. 



attack of, by enzymes, 51. 



lists, 28, 34. 



Trypsin, action on polypeptides, 43. 

 ' -Tyrosyl-glycine, 24. 



WALDEN inversion, 27. 



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