TABLE OF CONTENTS. 



Page. 



Letter of Transmittal 3 



Constitution of The Michigan Academy of Science 5 



By-Laws of Tlie Micliigan Academy of Science 7 



Otficers of the Micliigan Academy of Science 9 



List of the Memljers of the Michigan Academy of Science 10 



Treasurer's Report ! 11 



WiUiam Henry Pettee 12 



List of Papers Presented at the Eleventh Annual Meeting 14 



Papers Published in this Report; 



President's Address, Natural Resources, Their Consumption and Conservation, bj' A. C. 



Lane 17 



On the Origin of the Sulphur Deposits at the Woolmith Quarry, Monroe Co., Mich., 



Edward H. Kraus 26 



On the Occurrence and Distribution of Celestite-Bearing Rocks, Edward H. Kraus 29 



Relation of Lake Whittlesey to the Arkona Beaches, F. B. Taylor 29 



Drumlin Areas in Northern Michigan. Israel C. Russell ' 36 



Change of Level at the West End of Lake Erie. E. L. Moseley 38 



The Variation of Land and Water Temperatures, W. F. Cooper 40 



Vitahty of Seeds, W. J. Beal 44 



" Color'' Stimulus and Vital Functions of Plants, J. B. Dandeno 44 



Toxic Action of Copper Sulphate upon Certain Algae in the Presence of Foreign Sub- 

 stances. Ellen B. Bach 48 



A Study of the Effect of Dilute Solutions of Hydrochloric Acid upon the Radicles of Corn 



Seedlings, F. A. Loew 50 



Notes on Ganoderma Sessile Murrill, .1. B. Pollock 53 



A Canker of the Yellow Birch and a Nectria associated with it, Jas. B. Pollock 55 



A Species of Hormodendrum on Araucaria, Jas. B Pollock 56 



Michigan Fungi, Pollock and Kauffman 57 



A Study of Plants in Ravines Near Adrian, Frances L. Stearns . 68 



Climatic Centers and Centers of Plant Dit^tribution, E. N. Transeau 73 



Nerve Layer in the Coral Coenopsammia, Duerden and Ayers 75 



Some Results of a Study of Variation in Paramecium, Pearl and Dunbar 77 



Further Experiments in Static Fimction, L Murhach 86 



The Status of Eutaenia Brachystoma, C. C. Whittaker 88 



The Distribution of Polvgvra in Michigan, Bryant Walker 92 



Variation in the Blue Racer, C C. Whittaker 100 



Some Results of a Studv of Correlation in the Crayfish, A. B. Clawson 103 



A Preliminary List of the Amphibia and Reptilia of Michigan, Gibbs, Notestein, Clark. . 109 



Bibliography' for the Amphibia and Reutilia of Michigan, Morris and Gibbs 117 



The Ophidia of Michigan, with an Analytical Key, F. N. Notestein Ill 



Plant Distribution in a Small Bog, Edith E Pettee 126 



Ravines in the Vicinity of Ann Arbor, Alfred Dachnowski 129 



The Scientific Necessity of Complete Registration of Vital Statistics, Cressy L. Wilbur. . 130 



" Am I My Brother's Keeper? " Henry B. Baker 135 



County Schools of Agriculture, W. .J. Beal 138 



Topics" in Horticulture for Common Schools. U. P. Hedrick 140 



Syllabus for a Four- Year Course in Horticuhure, U. P. Hedrick 141 



Animal Husbandrv, R. S. Shaw 142 



A Study of Soils by Young Students, J. A. Jefifery 145 



Courses in Some Phases of Rural Economy, F W. Card 148 



Outline for a Brief Course in Agricultural Economics, K. L. Butterfield 149 



Outline for a Brief Coune in Rural Sociology, K L. Butterfield ISO 



The Preparation of Teachers for the Rural Common Schools, Ernest Burnham 152 



Experiences in School Gardening. J. B. Dandeno 156 



Our School Museum. Chas W. Garfield 161 



Winter Field Work in Botany, J. Harlen Bretz 164 



The use of Tryptophan in Culture Mediator Detection of Indol Production, S. F. 



Edwards. . . . . 169 



Anthrax-Like Bacilli, David .J. Levy 173 



Disinfection by Means of Formaldehyde and Potassium Permanganate, Jas. G. Gum- 

 ming '. 177 



The Black River Section Near Bessemer, W. C. Gordon 188 



Index 196 



