494 CATALOGUE OF EXHIBITS. 



b. Substances Extracted from the Cocoanut. 



c. Embryology of Micrampelis echinata. 

 Exhibited by Mr. J. E. Kirkwood. 



15. a. Lycopodiums, b. Roots of Monotropa, and c. Demon- 



strations. Exhibited by Professor F. E. Lloyd. 



16. a. Mycorhizas, and b. Etiolations. Exhibited by Dr. D. 



T. MacDougal. 



17. New Species of Grasses from the Southern United States. 



Exhibited by Mr. Geo. V. Nash. 



18. New Genera of Plants from Bolivia. Exhibited by Pro- 



fessor H. H. RusBY. 



19. New Species of Senecios from the Rocky Mountains. 



Exhibited by Dr. P. A. Rydberg. 



20. Rare and Interesting Mosses. Exhibited by Mrs. A. M. 



Smith. 



21. Apparatus used in Study of Plant Physiology. 



a. Dynamometers for measuring the force of growth and 



curvatures. 



b. Clinostat. 



c. Influence of electricity upon plants. 



d. Germinations. 



e. Demonstrations. 



Exhibited by Professor Geo. E. Stone. 



22. Influence of Cold upon the Growth of Sterigmatocystis. 



Exhibited by Miss Ada Watterson. 



23. Mosses from the Klondike. Exhibited* by Mrs. E. G. 



Britton and Mr. R. S. Williams. 



24. Method of Determining Amount of Water Conduction in 



Plants. Exhibited by Dr. C. C. Curtis. 



D 



CHEMISTRY. 



In Charge of Charles E. Pellew. 

 I. Specimens of Smokeless Powder. Exhibited by Capt. H. 



C. ASPINWALL. 



