OF ARTS AND SCIENCES. 187 



15 h. 20 m. Eeduced aperture to 22 inches ; no better see- 

 ing. HOLDEN. 



(19) 1874. Nor. 26. 15 h. Procyon: full aperture. I see distinctlj'- the same 

 companion that I saw last night. Position about 90° 

 more than old companion, [p = 42* from this estimate.] 

 Seeing perfect. Planetary disc to Procyon. 15 h. 30 m. to 

 45 m. : reduced aperture to 22 inches. Sudden scud of 

 cloud and haze : saw the small companion but once. 



HOLDEN. 



Besides the above recorded observations, the companion has been 

 looked for and not found on various occasions at the Naval Observa- 

 tory by Professors Hall, Eastman, and Peters ; and by Professor 

 Peters at the Melbourne Observatory with the four-foot reflector 

 under very good conditions. 



On Jan. 12, 1876, Procyon was examined under exceptionally 

 fine circumstances by Professor J. C. Watson and Professor Hoiden. 

 No trace of Struve's companion was seen ; but both observers inde- 

 pendently discovered others of which they at once, and without con- 

 sultation, made sketches which agreed in showing certainly three small 

 companions quite within 10" of distance, and between 0° and 90° of 

 position angle ; and one was suspected by Professor Hoiden some- 

 where between the old companion and Procyon. Designating these 

 in the order of position angle by 1, 2, 3, and 4, the sketches agreed in 

 making 2 the brightest of the three, and also the most distant, while 

 1 and 3 were nearly of equal brightness and of equal distance (less 

 than the distance of 2). The following is a transcript from the Ob- 

 serving Book : — 



o 



(20) Procyon and neighboring stars : coincidence of wires 64 r. 14 approxi- 

 mately. Telescope west of pier ; eye-piece, 400 A. 



Reading for Position. Reading for Distance. 



231.6 63.488 



p = 10° s = 6" 63.592 



J. C. "Watson. 



200 63.31 



208 63.40 



34° s = 7/'.9 E. S. HoLDEN. 



Telescope east of pier. Eye-piece 400. 



209.6 65.12 



p = 32° s = 9'/.7 J. C. WATSoy. 



208 65.02 eye-piece 400. 



p = 34° 8 = 8.8 E. S. HoLDEX. 



