XLII THE ROYAL SOCIETY OF CANADA 



17. — (i) The Bog-Forests of Lake Memphremagog, their De- 

 struction and Consequent Successions in Relation to Water Levels. 

 By Francis E. Lloyd, M.A., F.R.S.C, and George W. Scarth, M.A. 



18. — (ii) River-Bank and Beach Vegetation of the St. Lawrence 

 River below Montreal in Relation to Water-Levels. By Francis E. 

 Lloyd, M.A., F.R.S.C, and George W. Scarth, M.A. 



19. — (iii) Study of Induced Changes in form of the Chloroplasts 

 of Spirogyra and Mougeotia. By George W. Scarth, M.A. Presented 

 by Francis E. Lloyd, M.A., F.R.S.C. 



20.- — ^Acceleration of Growth and Regression of Organ-Hyper- 

 trophy in Young Rats after Cessation of Thyroid Feeding. By A. T. 

 Cameron, M.A., B.Sc, F.LC, F.R.S.C. 



21.' — A Preliminary Report on the Limnology of Lake Nipigon. 

 By Wilbert A. Clemens, M.A., Ph.D. Presented by B. A. Bensley, 

 B.A., Ph.D., F.R.S.C. 



22. — (i) The Progress of Tryptic Digestion of Protein as Studied 

 by the Method of Butyl Alcohol Extraction. By Andrew Hunter, 

 M.A., B.Sc, F.R.S.C. 



23. — (ii) The Action of Trypsin upon the Amide Nitrogen of 

 Proteins. By Andrew Hunter, M.A., B.Sc, F.R.S.C. 



24. — (iii) A Study of the Action of Arginase. By Andrew 

 Hunter, M.A., B.Sc, F.R.S.C, and J. A. Morrell, B.A. 



25. — (iv) The Question of the Presence of the Tryptophane 

 Radicle in Hemoglobin. By Andrew Hunter, M.A., B.Sc, F.R.S.C, 

 and H. Borsook, B.A. 



26.- — ^(i) The Ascidian Family Caesiridae. By A. G. Huntsman, 

 B.A., M.B., F.R.S.C. 



27. — (ii) The Genera of Simple Ascidians of Savigny and Fleming, 

 with Remarks on Nomenclature. By A. G. Huntsman, B.A., F.R.S.C. 



28.— The Employment of a Quantitative Method in the Study 

 of the (so-called) d'Herelle Phenomenon. By H. B. Maitland, M.B. 

 M.R.C.S. Presented by J. J. MacKenzie, B.A., M.B., F.R.S.C. 



29. — (i) The Excretion of Creatine and Creatinine in Childhood 

 and Disease. By V. J. Harding, D.Sc, F.R.S.C, and O. H. Gaebler. 



30. — (ii) The Excretion of Acetone Bodies and Nitrogen in the 

 Treatment of Nausea and Vomiting of Pregnancy. By V. J. Harding, 

 D.Sc, F.R.S.C, and C T. Potter. 



31. — (i) Two Undescribed Butt Rots of Conifers. By J. H. 

 Faull, B.A., Ph.D., F.R.S.C. (Lantern). 



32. — (ii) A New Peridermium on Abies halsamea and a new 

 Uredinopsis on the Common Polypody. By Hugh P. Bell, M.Sc. 

 Presented by J. H. Faull, B.A., Ph.D., F.R.S.C. (Lantern). 



