INDEX. 



ACID albumin, 2. 

 amide groups, 4. 

 Adamkiewicz-Hopkins reaction, 28. 

 Alanine, 5, 7, 38, 71, 77, 79, 82, 85, 89. 

 amount in proteins, 111-130. 

 characterisation, 51. 

 constitution, 2. 

 ester, 38, 42, 51. 

 in humin formation, 65. 

 isolation, 44, 45, 48-50. 

 loss during analysis, 67, 68, 69. 

 phosphotungstate, 48. 

 separation from glycine, 51. 



valine, 48-50. 



Albumins, i, 73, 76. 

 composition, 113. 

 tryptophan, 31. 

 vegetable, i, 74. 

 , composition, 118. 

 , N distribution, 131, 132, 133. 

 Albumose, 2. 



Aldehydes in humin formation, 66. 

 Alfafa hay, N distribution, 134. 

 Alkali globulin, 2. 

 Amandin, i, 75. 

 , composition, 117. 

 , N distribution, 131. 

 , tyrosine, 20, 23. 



Amide nitrogen, 4, 64, 74, 75, 85, 86. See 

 also Ammonia. 



, analytical data, 111-130, 131-135. 



, estimation, 15, 55-56, 87-88, 97-98, 



105. 



Amino-acetic acid, 2. 

 Amino acid anhydrides, 54. 

 Aminobutyric acid, 5. 

 Aminocaproic acid, 5. 

 Aminoglutaric acid, 3. 

 Aminoguanidinevalerianic acid, 3. 

 Aminoisobutyric acid, 5. 

 Amino-isocaproic acid, 3. 

 Amino-isovalerianic acid, 2. 

 Amino-methyl-ethyl propionic acid, 3. 

 Amino nitrogen, 44, 64, 85. 



1 estimation, Sorensen's method, 



12-14. 



, Van Slyke's method, 12, 89-96, 



108. 



Aminopropionic acid, 2. 

 Amino succinic acid, 3. 

 Aminovalerianic acid, 71. 

 Ammonia, 4, 64, 74, 75, 94. 

 , amount in proteins, 111-130, 131-135. 

 , estimation, 15, 55-56, 85, 88, 97-98. 



Amyloid, composition, 129. 

 Analysis, by N distribution, 85-110. 



, loss during, 63-69. 



, results, 63-84. 

 Analytical data, 111-135. 

 Anhydrides of amino acids, 54. 

 Antiaris toxicaria, protein, 82. 



, composition, 129. 



Antipeptone, 14. 

 Arachin, composition, 117. 



, N distribution, 131, 132. 

 Arginine, 70, 71, 72, 73, 74, 75, 79, 81, 82, 

 83, 85, 109. 



, amount in proteins, 108, 111-130. 



, constitution, 3. 



, estimation, 55,59, 85, 101-102, 107, 108. 



, in humin formation, 65. 



, isolation, 55, 56-57, 59. 



, nitrogen, 70, 85, 103. 



, analytical data, 132-135. 



, estimation, 101-102, 103. 



, separation from histidine, 55. 

 Armadillo scales, 80. 



, composition, 125. 



, N distribution, 131. 



Asparagine, 74, 89. 

 Aspartic acid, 82, 85, 86, 89. 



, amount in proteins, 111-130. 



, characterisation, 52. 



, constitution, 3. 



, ester, 37, 42, 52, 53. 



, isolation, 34, 35, 52-53. 



, loss during analysis, 67, 68, 69. 



, separation from glutamic acid, 34. 



, leucine, 53. 



Aspergillus niger, 81. 



, composition, 127. 



Avenin, composition, n8. 

 Azolitmin paper, 106. 

 Azotobacter, 81. 



, composition, 127. 



BACILLI, 81. 



, composition, 127. 

 Barley, N distribution, 134. 

 Bau-steine, 4. 

 Bence-Jones protein, 25, 73- 



, composition, 114. 



Benzaldehyde in humin formation, 66. 



Betaine, 69. 



Betaines of amino acids, 69. 



Blood corpuscles, histone, i, 72. 



, dried, N distribution, 134. 



meal, N distribution, 134. 



167 



