eae 
370 Scientific Intelligence. 
Nebula of Orion, which object is also engaging the attention of Lord 
around the nebula with more minuteness than the Russian astronomers} 
and he has been so fortunate as to discover in the nebula a grand feature 
n eye-piece magnifying 90 times, with a field of 30’; by this arrange 
ment it was seen with great distinctness. It is well known how clearly 
the low powers of comet-seekers bring out the faint details of comets; 
and the conversion, so to speak, of the Harvard Refractor into a huge 
comet-seeker has led to this interesting discovery. 
In 1851, Prof. G. P. Bond visited Europe, and his reception at the 
principal astronomical establishments, and especially at the classical Ob- 
servatory of Pulkowa, as detailed in the Annals of Harvard College Ob- 
servatory, vol. i. part i.,’ may perhaps Le regarded as evincing something 
more than the ordinary courteous welcome due to a stranger. In 1863 
he again visited Europe, when I had the pleasure of making his acquaint- 
ance, and I am convinced that on this, as on the occasion of his previous 
visit, Professor G, P. Bond not only gained many personal friends, but 
also the high opinion and respect of those astronomers with whom he 
eame into contact.—From The Reader, Feb. 11, 1865; but somewhat 
altered and extended after comparison with the publication of the Address 
in the Monthly Notices of the Astr. Soc., vol. xxv, Feb. 10, 1865, p. 125, 
received after these pages were in type. ae 
4. Comet V, 1864.—A comet was discovered by- Bruhns, at Leipzic, 
on the 30th of Dec. 1864. The following elements were computed by 
Engelmann, from observations of Dee. 30th, Jan. 3d, and Jan 21st. 
T = 1864, Dec. 27-76616, 617° 7/ 13'"%, 
%. oz. 162° 21" 5601, log ¢ = 0047095, 
Q =..340° 63’ 52-6, :.. Motion retrograde. 
5. Duration of the flight of shooting stars—Dr. Junes Scumut, di- 
meteors, out of about 16,000 seen. The mean duration of those of dif 
ferent colors was, of 846 white shooting stars, 0°709; of 361 yellow, 
0947; of 101 red, 1°°787; and of 49 green ones, 2685. The mean 
of all was 0*:925. This is somewhat larger than the mean duration ob- 
tained on page 203 of this volume. Dr. Schmidt having been accts- 
tomed to estimate small ‘intervals of time in astronomical observations, 
his estimates deserve not a little confidence. We trust that he will 
classify them according to the hour of the night. His earlier observa- 
tions were made mostly in the evening. The times of the observations 
of this series are not specified. We believe that there is a decrease im 
* Appendix, pp. 158-60, inclusive. 
