II 



1. Part of spectrum of a Orionis (three prisms). 



2. Part of spectrum of o Citi (Mira) — (three prisms). 



3. Comparison of the spectra of 78 Schjellerup ( Vogel's 

 type 3b) and /> Persei (Vogel's type 3a). 



5. Bromide Enlargements of Photographs of Recently 



Constructed Instruments. Exhibited by Warner & 

 Swazey, Cleveland, Ohio. 



a. 6-inch Meridian Circle made for U. S. Naval Observa- 

 tory, Washington, D. C. 



b. 5-inch Alt- Azimuth made for U. S. Naval Observatory, 

 Washington, D. C. 



c. 3-inch Combined Transit and Zenith Telescope. 



d. 4-inch Zenith Telescope. 



e. 3-inch Prism Transit. 



f. Standard lo-inch Equatorial Telescope. 



6. Publications of Various Observatories, showing repro- 



ductions of photographs of the Moon. Exhibited by 

 Columbia University. 



a. Plates from Photographs, by M.M. Loew^y and M. P. 

 Puiseux, Paris Observatory. 



b. Plates by Dr. Weinek, of Prague. 



c. Plates from the Lick Observatory photographs. 



7. Mirrors and Reel Used in the Determination of 



the [Constant of Abberration by the Loewy 

 Method. Exhibited by Professor George C. Coinstock, 

 Washburn Observatory, Madison, Wis. 



c 



BOTANY. 



In Charge of Geo. V. Nash. 



I. Albrecht's Klinostat to Illustrate the Exclusion of 

 Heliotropic and Geotropic Curvature. Exhibited 

 bv Dr. C. C. Curtis. 



