117. Beizen. W. Appelius. Technische Briefe Monatshefte von “Häute und Leder,” No. 23. April 1909. 118. Kolloid Chemische Beihefte. Ed. Wo. Ostwald. Dresden, 1909–1911. 119. Verfahren zum Beizen von Häuten. Otto Röhm. Coll., 1909, p. 58. 120. A Brief Review of Bacteriological Research in Phytopathology, with Bibliography. M. C. Potter, Sc.D., M.A. Science Progress, Oct. 1910, p. 191. 121. La Chimie de la Matière Vivante. J. Duclaux. Felix Alcan, Paris, 1910. 122. Sensibilité de la peau verte, et de la peau après l’échauffe, les pelains, et les confits, à l’égard de la chaux, du sel, et de l’acide acétique. Georges Abt et Edmund Stiasny. Coll., 1910, p. 189. 123. Bennett, H. G. The Analytical Examination of Bating. Leather Trades Review, 1911, pp. 697, 972. 124. Der Bacillus bulgaricus des Yoghurt in der Gerberei. Leder-technische Rundschau, No. 25, 1911. Collegium, 1911, p. 459. 125. Physiological Chemistry. Olaf. Hammarsten. Trans. J. A. Mandel, Wiley, 1911. 126. Précis de Biochemie. E. Lambling. Paris, 1911. 127. Bacteriological and Enzyme Chemistry, an Introduction to. Gilbert J. Fowler. Edward Arnold, 1911. 128. Microbes et Toxines. E. Burnet. Bibliothèque de Philosophie Scientifique. Flammarion. Paris, 1911. 129. The Physical Chemistry of the Proteins. T. B. Robertson, Professor at the Berkeley University, California, 1911. 130. Contributions to the History of the Enzyme Bate. Collegium, 1911. Otto Röhm, H. Becker, G. Eberle, J. T. Wood, pp. 271, 276, 278, 281, 312, 324. 131. The Fungi of Excreta. Jas. Scott. The Leather World, Jan. 11, 1912, p. 21. 132. Microbiology, by various Contributors. Edited by Charles E. Marshall, East Lancing, Michigan, Professor of Bacteriology and Hygiene, Michigan Agricultural College. J. and A. Churchill. 133. Technical Mycology. Lafar. C. Griffin and Co., 1911. 134. Manual of Bacteriology. R. T. Hewlett (Churchill), 1912. 135. Taschenbuch für den bakteriologischen Praktikanten. Dr. Rudolf Abel. Würzburg. A. Stuber’s Verlag. LIST OF AUTHORS. _The numbers refer to the Bibliography._ Abel, R., 135 Abt, G., 51, 122 Aikin, A. and C. R., 7 Andreasch, F., 26 Ankersmit, P., 43 Appelius, W., 117 Bayliss, W. M., 113 Bautsch, I., 4 Becker, H., 42, 52, 130 Behrens, J., 67 Bennett, H. G., 123 Beijerinck, W., 64 Bichon, G. W., 10 Bienstock, 62, 68 Borgmann, J., 37 Bourquelot, E., 91 Brüggemann, A., 11 Burnet, E., 128 Carbone Tito, 60 Carini, 105 Claflin, A., 92 Crookshank, E. M., 83 Davis, 15 Dallinger, 76 De la Lande, 21 Desbillettes, 1 Distaso, A., 55 Drysdale, 76, 90 Duckwall, E. W., 109 Duclaux, J., 121 Eberle, G., 130 Eitner, W., 14, 17, 32, 94, 98 Effront, J., 95