188 



KNOWLEDGE. 



Junk, 1Q15. 



Sh. I., 3" 21"" HI, 111. Sh. E., 3" 38"" 10" m, II. Ec. D. ; 

 16" 2" 38" 45" in, I. He. D., ll"" 52"" c, I. Sh. I. ; 17" O" 43"' 

 tn, II. Tr. I., 0" 59" m, II. Sh. E., 1" 8'" iii. I. Tr. I., 2" 10'" 

 III. I. Sh. E., 3" 25°" m, I. Tr. E., 3" 32"" in, II. Tr. E. ; 

 18" 0" 37"° "1, I. Oc. R. ; 20" 10" 55"" 39' e, IV. Ec. D. ; 

 21" 2" 18" 45" m, IV. Ec. K; 24" O" 44" »»,II. Sh. I., l" 46" 

 m, I. Sh. I., 2" 57" m, I. Tr. I., 3" 11" iii, II. Tr. I., 3" 36'" 

 III, II. Sh. E., 4'' 4" HI, I. Sh. E., 11" !"■ 44" c, I. Ec. D. ; 

 25" 2" 27"" m, I. Oc. R., 10" 32" c, I. Sh. E., 11" 4" c, 

 III.Oc. D., 11" 41" c, I. Tr. E. ; 26" O" 33" m, II. Oc. R., 

 1" 53°' HI, III. Oc. R. ; 29" 10" 32" e, IV. Tr. E. ; 31" 3" 22"" 

 HI, II. Sh. I., 3" 40" HI, I. Sh. I. 



Notice that Satellites I and II may be seen simultaneously 

 in transit on the 10th, 17th, and 24th. It will bo interesting 

 to compare the satellites and their shadows on these 

 occasions. 



S.\TURN is invisible, having been in conjunction with the 

 Sun on June 28th. 



Uranus is a morning star, but badly placed. 



Neptune is invisible, being in conjunction with Sun on 

 24th. 



Mean Time of Meridian Transit at Greenwich of 

 Certain Bright Stars. — It has been suggested to me that 

 such a Table as Table 31 would be of service to observers 

 for obtaining time by small transit instruments. 



To find the Greenwich time of these stars crossing other 

 meridians, express their longitude in time, diminish it by 

 'J"-83 for each hour of longitude, then add the result to the 

 above times for West longitudes ; subtract it for East 

 longitudes. The times of transit for intermediate days may 

 be obtained by simple interpolation. 



Meteor Showers (from Mr. Denuing's List) :— 



4 



Table 31. 



Morning of July 1st. 



Table 32. Occultations of Stars by the Moon visible at Greenwich. 



From New to Full disappearances occur at the Dark Limb, from Full to New reappearances. 

 The asterisk indicates the day following that given in the Date column. 

 Attention is called to the occultation of the Pleiades on the morning of July Sth. 



