INDEX.

Absorption phenomena, [70]
Abt, Dr. G., [51], [72]
Acid “turning” of drench, [237]
Acids, action of, [156]
— fractionating, [270]
— deliming with, [9]
— in drench, [265]
— to remove lime, cost of, [11]
Adulteration in dog-dung, detecting, [144]
Agglutinin, [144]
Alum, a term for puer, [3]
“Alumed” calf skins, [3]
Amend’s bate, [193]
Amido compounds, [156]
Amines, [163], [206]
— in dung, [154]
Ammonia in puer liquors, [41]
Ammonium phosphate, [45]
Analyses, bird excreta, [53]
— dog dung, [26], [150], [152]
— drench, [249]
— gas, [247]
— grains, [7]
— guano, [150]
— hen dung, [150]
— puer, [26]
— ultimate, of dung, [153]
Andreasch, F., [244]
Anti-bodies, [143]
Anti-calcium, [236]
Arginase, [133]
Artificial drench, [263]
Ash of skin, [39]
Authors, list of, [290]
Bacillus butyricus, [112]
c, [172]
Coli commune, [94]
d, [106], [173], [174]
e, [107], [173]
erodiens, [97]
— from pigeon dung bate, [172]
Bacteria, action of, [160]
— bate, examination of, [87]
— bran, pure culture of, [269]
— dung, [89], [98], [102], [161]
— growth in various media, [105]
— pigeon dung, [103]
— putrefactive, [125]
— “Sweating,” [105], [213]
Bacterial diastase, [131]
Bacterium furfuris, [241], [264], [269]
termo, [118]
Barium salts from pure cultures of B. furfuris, [271]
— — of volatile acids, [253]
Bate, Amend’s, [193]
— Becker’s patent, [227]
— bird dung, [52]
— Boehringer’s patent, [197]
— concentration of salts in, [47]
— Dermiforma, [189]
— Eberle’s patent, [221]
— Erodin, [179]
— Esco, [192]
— examination of bacteria in, [87]
— glucose, [179]
— Lederer’s, [196]
— Nordlinger’s, [195]
— Norris’s, [194]
Bate, Nowak’s patent, [194]
— Oake’s, [195]
— Oropon, [140], [186], [219]
— phosphates in, [43]
— pigeon dung, [103]
— Phosphorbutyralin, [195]
— Popp and Becker’s patent, [197]
— Puerine, [190]
— Purgatol, [192]
— reducing action of, [152]
— Röhm’s patent, [219]
— Simon’s, [195]
— solid matter, influence of, [176]
— soluble matter of, [176]
— Sucanine, [191]
— Tiffany’s, [179]
— Wood’s American patent, [210]
— — English patent, [205]
— Zollikoffer’s, [178]
Bayliss, Dr. W. M., [127]
Béchamp, [280]
Betulase, [132]
Becker’s patent, [227]
Bibliography, [282]
Bile, [31]
— action of, [159]
— colouring matters, [30]
— salts, effect on puer, [46]
— — — — lipase, [142]
Bird dung bate, [52]
— excreta, composition of, [53]
Boehringer’s patent, [194]
Bone meal, [196]
Books of reference, [89], [282]
Bran bacteria, [240]
— — pure cultures of, [269]
— composition of, [257]
— drench, [233]
— — non-volatile bodies in, [254]
— — products of fermentation, [247]
— — sweet, [263]
— — volatile bodies in, [249]
— ferments, action on starch, [258]
Brown, Adrian J. Prof., [274]
Butyric acid, [11]
— — fermentation, [111]
Calcium in enzymes, [136]
— phosphate, [45]
Carlsberg vessel, [170], [214]
Caroubinase, [132]
Casease, [132]
Castor-oil seed, [188], [232]
Catalysts, [127]
Cellulose fermentation, [110]
Cerealin, [245], [260]
Chemical composition of puer, [24]
— deliming, [5]
Chloroform, use of, in pancreatin solution, [151]
Cholesterol, [30]
Collagen, [56]
Colloidal state, [57], [137]
Concentration of salts in bate, [47]
Condenser, Abbe’s, [87], [88]
— dark ground, [87]
Conductivity of puer liquors, [80], [81]
Copenhagen conference, [180]
Cultivation of bating bacteria, [199]
Culture medium, [105], [207]
Cytase, [132]
Deliming, chemical, [5]
Density of skin, [60]
Dermiforma, [189]
Dextrin, [259], [261]
Diastase, [128], [131], [132]
— Krawkov’s method of preparing, [135]
Diastatic enzymes, [235]
Digestive ferments, [148]
— juices, [230]
Dog dung, analyses of, [26], [150], [152]
— bacteria in, [89], [98]
— detecting adulteration of, [144]
— fresh, bacteria in, [102]
— influence of food on, [28], [95], [153]
— method of analysis, [25]
Dog dung, separating enzymes from, [134]
— trypsin in, [134]
Doerr and Reinhardt’s laboratory, [32]
Drench, acid “turning” of, [237]
— acids in, [156]
— action of, [233], [242], [245]
— artificial, [263]
— bacteria in, [239]
— damage, [236]
— fermentations of, [238]
— gases from, [242], [248]
— glucoses in, [261]
— “pinholey,” [238]
— putrid “turning” of, [237]
— sweet bran, [235]
Dressing hides, [19]
Drop culture, [87]
Dung analyses, [26], [150], [152], [153]
— mineral matter of, [153]
Eberle, G., [13]
Eberle’s patent, [221]
Effront, Dr., [11]
Eitner, [242], [244]
Electrometric apparatus, [76]
— method, [33], [49]
Emulsin, [132]
Enzymatic bates, [197]
Enzymes, action of, [145]
— — of serum on, [144]
— — on skin, [140]
— calcium in, [136]
— defined, [127]
— diastatic, [235]
— from bacteria, [131]
— hydrolysing, [132]
— in dog’s dung, [137]
— lipolytic, [145]
— manganese in, [136]
— preparation of, [134], [164]
— proteolytic, [145]
Erepsin, [133], [142]
Erodin, [179]
Erodin, stock liquor, [182]
Esco, [192]
Esters, synthesis of, [127]
Ethyl butyrate, [165]
Ethylamine butyrate, [42]
— lactate, [42]
— propionate, [42]
Fahrion, Dr., [52]
Falling, [67]
— apparatus for measuring degree of, [82]
Fat in puer, [25], [30]
— in skins, [16]
Feeding of dogs, [28], [95]
Fermentation in the leather industry, [147]
— nitrogen from, [279]
Ferments, digestive, [148]
— gall, [224]
— hydrolysing, [132]
— imino-lytic, [133]
— oxidizing, [133]
— oxylytic, [133]
Flagellæ, staining of, [94]
“Flaked” grain, [149]
Formic Acid, [9]
Fractionating acids, [250]
Frankland and Frew, [249]
Gall ferments, [224]
Gamgee, [281]
Gas analysis, [247]
Gases from drench, [242], [248]
— from pure cultures, [275]
— intestinal, [281]
Gayon, [280]
Gelatin, [56]
— density of, [63]
— glucose, [267]
— molecular weight of, [56]
— peptonized, [168]
Glucose bate, [179]
— gelatin, [267]
Glucoses in drench, [261]
Glycerin, [141]
Goat skins, [183]
— — bating of, [231]
Guano, analysis of, [150]
Golding, J., [175]
“Grains,” analysis of, [7]
Harness backs, [17]
Hauff, J., [236]
Hen dung, analysis of, [150]
Hexoses, [125]
Hide-powder, density of, [66]
Hides, bating of, [17]
Houston, Dr., [93], [94], [97]
Hydrogen from drench, [239]
Hydrogen-ion concentration, [74], [79]
Hydrochloric acid, use in deliming, [11]
Hydrolysis, [128]
— velocity of, [130]
Hydrolysing enzymes, [132]
Immendorf, [280]
Imino-lactic ferments, [133]
Indol, [95], [106]
Infusoria, [123]
Intestinal gases, [281]
— juice, [225], [228]
Inulase, [132]
Jean, F., [41]
Jones, Arnold Seymour, [75], [133]
Kaolin, [176]
Kathreiner, F., [46], [236]
— bate trials by, [183], [184]
Koch’s Jahresbericht, [125]
Körner, Dr. Th., [67], [167]
Kossel, Dr. A., [170]
— and Dakin, [133]
Kral, Prof., xv
Kühl, Dr. H., [236]
Laccase, [133], [135]
— manganese in, [135]
Lactase, [132]
Lactic acid, [10]
— — from B. furfuris, [272]
Lamb, M. C., [9]
Law’s volumenometer, [61]
Lecithin, [141]
Lederer’s bate, [196]
Lime in sheep grains, [23], [37]
— in puer liquors, [36], [40], [44]
— soaps, [16]
Limed skin, [5], [7]
Lion’s dung, [29]
Lipase, [132], [141]
— effect of bile salts on, [142]
Lipolytic enzymes, [145]
Liquor pancreaticus, [189]
Malase, [133]
Maltase, [132]
Manganese in enzymes, [136]
Mastering, a term for puer, [3]
Mercaptans, [46]
Measuring truck, [8]
Meggitt, Loxley, [171]
Metchnikoff, [93]
Mineral matter of dung, [153]
Minot, Prof., [81]
Mixed cultures, [173]
Molecular weight of gelatin, [56]
Monads, [123]
Morocco leather, [3]
Moulds, [114], [126]
Müller, [72]
Muscle, contraction of, [73]
Myrosin, [132]
Myxomycetes, [116]
Nencki, [107]
Nitrogen from fermentation, [279]
— in bran, [234]
— in puer liquors, [48]
Nitrites, use of, in bating, [193]
Non-electrolytes, influence of, [72]
Nördlinger’s bate, [194]
Nowak’s patent, [194]
Nuclein, [114]
Oake’s bate, [195]
Oenoxydase, [133]
Olease, [133]
Organic acids, use in deliming, [13]
— — in puer, [155]
Oropon, [140], [186], [219]
Osmosis, [58]
Osmotic pressure, [59], [167]
O’Sullivan, J., [244]
— and Thompson, [128]
Oxalic acid fermentation, [111]
“Oxidizing” skins, [193]
Oxydin, [133]
Oxylytic ferments, [133]
Paddle, [14]
Pancreas, [220]
Pancreatin, action on skin, [138], [151]
Papain, [132]
Parker, Dr. Gordon, xv, [11]
Pectase, [132]
Pentoses, [125]
Pepsin, [132]
— action on skin, [138]
Peptolytic ferments, [119]
Peptonized gelatin, [168]
Phosphates in the bate, [43]
Phosphorbutyralin, [195]
Pigeon dung, [103]
“Pinholey” drench, [238]
Plasmase, [132]
Plate cultures, [103]
Popp and Becker’s patent, [197]
Precipitin, [144]
Pribram, Dr., [73]
Procter, Prof. H. R., [10], [55], [205], [210]
Proteolytic enzymes, [145]
— ferments, [119]
Proteus bacteria, [118]
Puer, amido compounds in, [156]
— chemical composition of, [24]
— fat in, [25], [30]
— organic acids in, [155]
— quantity used, [15]
— reactions of, [31]
— wheel, [13]
Puerine, [190]
Puering, solution of skin substance in, [47]
Pure cultures of bran bacteria, [269]
Purgatol, [192]
Purin bases, [30]
Putrefaction, [116]
See Nos. 58 to 78 of Bibliography, [282]
— mechanism of, [107]
— of meat, [120]
Putrefactive bacteria, [107]
Putrid “turning” of drench, [237]
Reaction of puer, [31]
Rennet, [128], [132]
Rhamnase, [132]
Rogers, Dr. Allen, [195]
Röhm’s patent, [219]
Ruge, [281]
Sabatier and Senderens, [127]
Salt solution, physiological, [87]
Salts solution, [267]
Sand, Dr., xv, [33], [81]
Schorlemmer, K., [186]
Scud, [51]
Scudding, [16]
— machine, [17]
Serum, action of, on enzymes, [144]
Shearling pelts, [183]
Shrewsbury, H. S., [166], [281]
Simon’s bate, [195]
Skatol, [46]
Skin substance, ash of, [39]
Skin substance, density of, [60]
— — fat in, [16]
— — solution of, [47], [51]
Soerensen, Prof., [43], [80]
Solid matter in bate, [73]
— — influence of, [175]
Soluble matter of bate, [176]
Soyka’s dilution method, [103]
Spirillum volutans, [112]
delsulfuricans, [124]
Spongy leather, [238]
Staining and mounting, books on, [89]
— of flagellæ, [94]
Starch, action of bran ferments on, [259]
Steapsin, [132]
Stiasny, Prof. E., [282]
Sucanine, [191]
Sucrase, [128], [132]
Sulphuric acid, use in deliming, [11]
Sulphuretted hydrogen, [46]
“Sweating” bacteria, [105], [213]
Sweet bran drench, [235]
Swelling, [67]
— alkaline, [72]
Symbiosis, [269]
Synthesis of esters, [127]
Syntonin, [32]
Thio-acids, [196]
Tiffany’s bate, [179]
Toxins, [143]
Trehalase, [132]
Trent bridge laboratory, [107], [252]
Trimethyl-amine, [107], [252]
— butyrate, [42]
Trypsin, [132], [133]
Trypsin, in dog dung, [134]
Turney, Sir John, scudding machine, [17]
“Turning” of drench, [287]
Tyrosinase, [133]
Urea, [29]
Urease, [132]
Uric Acid, [29]
Velocity of hydrolysis, [130]
Volumenometer, [61]
— air, [67]
— Law’s, [61]
Wladika, J., [256]
Willcox, Dr. W. H., [243], [245]
Wood’s American patent, [210]
— English patent, [205]
Wool bacteria, [174]
Xylose, [125]
Yeast water, [259]
Yoghurt, [236]
Zinc, effect on growth of moulds, [113]
Zollikoffer’s bate, [178]
Zoogloæ, [242]
Zymase, [133]


LONDON: PRINTED BY WILLIAM CLOWES AND SONS, LIMITED
GREAT WINDMILL STREET, W., AND DUKE STREET, STAMFORD STREET, S.E.