TABLE OF CONTENTS. 



Page. 



Abstract of the history of the Michigan Academy of Science 5-6 



Law relating to publication of the report G 



Constitution and By-laws of the Michigan Academy of Science 7-13 



Seventh annual meeting, March 28-30, 1901.— Business 14-15 



List of Members elected 14 



Complete list of papers presented at seventh meeting 16-18 



Papers published in this report 19-112 



Nature Study. Presidential Address, by Professor Charles E. Barr 19-26 



The Place of Physil^s in a Liberal Education. Professor H. S. Carhart, Ann Arbor 27-34 



An Archjeological Survey of Michigan. Harlan I. Smith, New York, X. V 35-37 



Recent Work of the State Geological Survey. Dr. A. C. Lane, Lansing 38-39 



Botanical papers .' 40-66 



Transition from Stem to Root in Echinocystls lobata, Torr. & Gray. — Dr. James B. Pol- 

 lock, Ann Arbor. (With figures.) 40-42 



Ecological Study of a Glacial Lake near Ann Arbor. Howard S. Reed, Ann Arbor. (Abstract) 43-45 



A Disease of the White Birch. John Larsen, Ann Arbor 46-49 



Interfoliar Scales of Monocotyledonous Acjuatics. Miuna C. Denton, Ann Arbor. (Abstract). 50 



Notes on the Flora of Eaton County. Prof. Hubert Lyman Clark, Olivet 51-52 



Something concerning the Forests of Northern Michigan; with lantern views. Dr. W. J. 



Beal, Agricultural College. (Abstract) 52 



A Noteworthy Occurrence of JJ'olffia. Prof. Charles A. Davis, Alma 54 



Notes on Utricularia cornnta Michx. Prof. Charles A. Davis, Alma 53-54 



Notes on Michigan Saprophytic Fungi. B. O. Longyear, Agricultural College 55-57 



New Species of Michig'an Fungi. B. O. Longyear, Agricultural College. (With plate) 57-60 



A Sclerotiuto Disease of the Huckleberry. B. O. Longyear, Agricultural College. (With 



plate) 61-62 



Causes inducing Asparagus to take its Form of Growth. L. Lenore Conover, Detroit 63-66 



Zoological papers 67-85 



Suggestions for a Method of Studying the Migrations of Birds. Mr. L. J. Cole. Ann Arbor. 67-70 

 The Occurrence of Ammocoetes, the Larval Form of Lampetra wilderi, near Ann Arbor. 



Mr. D. C. Schaffner 71-72 



Some Aspects of the Electro tactic Reaction of Lower Organisms. Mr. Raymond Pearl. 



(Abstract) 73-74 



A Curious Habit of the Slug, Agriolimax. 3Ir. Raymond Pearl 75-76 



The Effect of very intense Light on Organisms. Mr. Raymond Pearl and L.J. Cole. (Abstract*. 77-78 

 Certain Reactions of the Common Slug, Agriolimax campestris. Mr. Raymond Pearl and 



Miss Maude M. DeWitt. ( Abstract;! 79 



Some Further Notes on the Breeding Habits of Amia. Prof. Jacob Reighard. (.\b3tract).. 80-81 



On the Anterior Head Cavity of the Elasmobranchs. Prof. Jacob Reighard. (Abstract) 81 



On the Early History of the Auditory and Lateral Line Organs of Amia. Cora J. Beckwith 



and Jacob Reighard. (Abstract) 82 



The Classification of Birds. Prof . Hubert L. Clark, Olivet. (Abstract) ■. 83 



The Breeding Habits of Holothurians. Prof. Hubert L. Clark, Olivet 83-85 



Sanitary Science 86-92 



A Bacteriological Study of an Epidemic among Guinea Pigs. Louis M. Gelston, Ann Arbor. 



(Abstract) 86-87 



The Detection of Boric Acid in Milk. W. H. Veenboer. .\nn Arbor. (Abstract) 88-89 



The Influence of Formaldehyde on the Growth of certain Bacteria in Milk. A. J. Hood, 



Ann Arbor. (Abstract) 90-91 



Agriculture 93-99 



Some of the Relations of Botany to Agriculture. Dr. W. J. Beal, Agricultural College 93-99 



Paper read before the Academy and Schoolmasters' Club 100-113 



How Shall a Young Person Study Botany? Dr. AV. J. Beal, Agricultural College 100-112 



List of Members of the Academy 113-115 



Index 116 



