None
Pfliiger's hypothesis, 172 Phenol, 38 Phenyl-alanine, 21, 48 Phosphoric acid in nucleic acids, 80, 105-108 (its mode of combination), 108 Phyllocyanin, 132 Phyllotaonin, 132 Phylloporphyrin, 132 Phylloxanthine, 132 Piperazine, 156 Polyaspartic acid, 156 Polypeptides, 155-164 Potassium phthalimide, 57 Primary albumoses, 141 Proline, see Pyrrolidine-carboxylic acid Propylene bromide, 57 Propyl-ethylacetoacetate, 135 Prosthetic groups, 19 Protalbumose, 144 Protamines, 54, 65, 67-69 Proteids, definition of, 19 Protones, 68 Pseudo-acids, 3-5 Pseudo-bases, 3-5 Pseudo-nucleines, iii Pseudo-uric acid, 84, 92 Purine, 90 Purine bases, 80 et seq. Pus cells, 70 Putrescine, 23, 57 Pyrimidine bases, 80, 97-102, 103-105 Pyrochinconic acid, 131 Pyrotartaric acid, 21, 23 Pyrrol, 131 Pyrrolidine-carboxylic acid, 23, 48 Pyruvic acid, 84 Quinine, 126 Saline precipitants, 10-14 Sahnine, 66 Scombrine, 66 192 INDEX Secondary albumoses, 141 Semi-aldehyde of succinic acid, 39 phenyl-hydrazide of, 39 Separation of albumens, 10 Serine, 22, 3Z-3Si 49 Skatol, 37 acetic acid, 37 Skatol-amino-acetic acid, 38 Skatol-carbonic acid, 37 Spermatozoa, 65 Sturine, 66 Succinic acid, 59 Succinimide, 136 Sulphur bodies derived from albumens, 27-32 Synalbumose, 149 Taurine, 30 Teichmann's crystals. Theobromine, 93, 95 Theophylline, 195 Thiolactic acid, 29 a-Thiolactic acid, 31 ;8-Thiolactic acid, 31 Thionuric acid, 84 Thionyl-chloride, 158 Thymic acid, 79 Thymine, 97, 99 Thymus histone, 71 125 Trichlor-lactic acid, 86 Trichlor-purine, 95 Tritico-nucleic acid, loi, 109-111 Tryptophane, 21, 36-41 Tyrosine, 22, 49 Unknown base from nucleic acid, 1 10 Uracil, 97, 100 Uramil, 84 Uramilic acid, 84 Urea, 59, 86, 99, 100 Uric acid, 83-96 Urobilin, 133, 136 Verworn's hypothesis, see " Biogen " hypothesis Vitellin, iii Volatile degradation products, 21 Witte's peptone, 12, 13 Xanthine, 82, 94 Xanthoproteid reaction, 8 Xylic acid, 81 Xylose, 81 Zinc sulphate as precipitant, 12, 140 et seq. PRINTED BY OLIVER AND BOYD, EDINBURGH. 