274 



KNOWLEDGE 



DXCEMBEB, 1902. 



"COMET PERRINE." 



By Miss Catharine O. Stevens. 



MooNMOHT lias interfered very much wifli observations of the comet, but the exceptional series of cloiulless nights 

 (liiriiif; the latter part of September afforded opportunity for making the accompanying sketches, which are an attemi)t 

 to convey some idea of its really exquisite beauty. The airy texture, the brilliance that is so delicately graduated 

 from the glory of an arc light to a veil that scarcely dims the light of even a telescopic star, and that eludes even the 

 skill of the photographer, furnishes an ajiology foi- the alternative of a portrait made by hand. 



Comet Pcrrino. — 11 p.m., 14 September, 1902. 

 [3 inch O.G-., power 30.] 



Comet Perrine.— 9.30 p.m., 16 September, 1902. 

 [3 inch O.G., power 30.] 



Comet Pemne.— 8.37 p.m., 25 September, 1902. 

 [3 inch O.G., power 30.] 



Comet Perrine. — Upon the backgi'ound of tlie Milky Way. 



12.5 p.m., 28 September, 1902. 



[3 inch O.G-., power 70.] 



