MICHIGAN ACADEMY OF SCIENCE. 15 



27. A Study of Plants in Ravines near Adrian (15 minutes). Frances Stearns, Adrian. 



28. Plant Distribution in a Small Bog (15 minutes). Edith Pettee, Detroit. 



29. Ravines in the Vicinity of Ann Arbor. (An Abstract) (10 minutes). Alfred Dach- 



nowski, Ann Arbor. 



30. History of Ecological Work (30 minutes). H. S. Reed, University of Missouri, 



Columbia, Mo. 



31. A Remarkable Floral Reversion Caused by Bud-Grafting and A Southern Plant 



New to the Hitherto Known Flora of Michigan, Found Growing at Ann Arbor 

 (20 minutes). S. Alexander, Ann Arbor. 



32. A Series of Hormodendrum Parasitic on the Arenaria (10 minutes). J. B. Pollock, 



Ann Arbor. 



33. Changes of Level at the West End of Lake Erie, (30 minutes). E. L. Moseley, 



Sandusky, O. 



34. Relation of Lake Whittlesey to the Arkona Beaches, (20 minutes). Frank B. Taylor, 



Fort Wayne, O. 



35. Occurrence and Distribution of Celestite-bearing Rocks, (15 minutes). Edward 



H. Kraus, Ann Arbor. 



36. Glaciers of British Columbia, slides, (20 minutes). W. H. Sherzer, Ypsilanti. 



37. Drumlin Areas in Northern Michigan, slides, (20 minutes). I. C. Russell, Ann Arbor. 



38. Interglacial Lake Clays of the Grand Traverse Region, (15 minutes), Frank Leverett, 



Ann Arbor. 



39. Beach Cusps, slides, (15 minutes). M. S. W. Jefferson, Ypsilanti. 



40. Origin of the Sulphur Deposits at Woolmith Quarry, Monroe Co., Mich., (15 minutes.) 



Edward H. Kraus, Ann Arbor. 



41. The ^^'ar Against Tuberculosis. V. C. Vaughan, Dean of the Medical School, Ann 



Arbor. 



42. Bird Hematozoa. F. G. Novy, Ann Arbor. 



43. Subject to be announced later. E. E. Butterfield, Ann Arbor. 



44. Am I My Brother's Keeper? Henry B. Baker, Lansing. 



45. The Scientific Necessity of Complete Registration of Vital Statistics. Cressy L. 



Williur, Lansing. 



46. Tryptophan Media. S. F. Edwards, Ann Arlwr. 



47. Technical Cultural Manipulation of Rhizobium. L. T. Clark, Agricultural College. 



48. Staining by the Romanowsky Method. H. N. Torrey, Ann Arbor. 



49. The Steani Still. Bronson Barlow, Guelph, Ont. 



50. The Relation of the Bacterial Content to the Ripening of Michigan Cheese. W. R. 



Wright, Agricultural College. 



51. Some Bacterial Hemolysins. T. B. Cooley, Ann Arbor. 



52. The Action of the Intra-Cellular Poison of the Colon Bacillus. V. C. Vaughan, Jr., 



Ann Arbor. 



53. The Extraction of the Intra-Cellular Poison of the Colon Bacillus. Sybil May Wheeler, 



Ann Arbor. 



54. The Germicidal Action of Fruit Juices upon Certain Pathogenic and Non-Pathogenic 



Bacteria. Mary Wetmore, Agricultural CoUege. 



55. Disinfection by means of Formalin and Potassium Permanganate. James C. Gum- 



ming, Ann Arbor. 



56. Bacterial Products in Milk and Their Relation to Germ Growth. Charles E. Marshall, 



Agricultural College. 



57. Anthrax-Like Bacilli. D. J. Levey, Ann Arbor. 



58. The Action of the Intra-Cellular Poison of the Pneumococcus. Fred Munson, Ann 



Arbor. 



59. Elementary Field Work,— Aims and Methods (40 minutes). I. B. Meyers, School 



of Eductaion, University of Chicago. 



60. Discussion (20 minutes). Opened bv L. H. Bailey, Cornell University. 



61. Aims and ^Methods of Phvsiographv Field Work in Secondary Schools (20 minutes). 



M. S. W. Jefferson, State Normal College. 



62. Discussion (15 minutes). Opened bv R. D. Calkins, Central Normal School. 



63. Aims and :Methods of Zoological Field Work in Secondary Schools. (30 minutes). 



C. E. Adams, University of Michigan. 



64. Discussion (15 miuntes). Opened bv Miss Jessie Phelps, State Normal College. 



65. Aims and Methods of Botanical Field Work in Secondary Schools (45 mmutes). 



Illustrated with lantern. H. C. Cowles, University of Chicago. 



66. Discussion (15 minutes). Opened by E. L. Moseley, Sandusky High School. 



67. Field Work in Botany for the Winter Season (10 minutes). J. Harlan Bretz, Albion 



College. 



