JUNE, 1910. METEORITE StupiEs III] — FarrRincTon. 183 
Jan.Feb.Mar. Apr.MayJuneJulyAug.Sept.Oct.Nov.Dec. 
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Of all times of fall of meteorites the most satisfactory for study 
are probably the hours of fall, since the ratio of number of falls to 
number of hours is larger than to days, months, or years. As is well 
known, the hours of fall show the direction of movement of meteor- 
ites, since (with a few minor possible obvious exceptions) meteorites 
falling from noon to midnight, or afternoon falls, as they may be 
called, must be moving in the same direction as the earth; while those 
falling between midnight and noon, or forenoon falls, are moving in 
a direction opposite to that of the earth or else at a speed so slow that 
they are overtaken by it. While the hour of fall is not known of as 
many meteorites as is the year and month, yet of 273 sufficiently sat- 
isfactory records are available. Of these 273 falls 184 occurred in the 
time from noon to midnight, and 89 from midnight to noon. The 
record in full is as follows, the total number being less by seven than 
that recorded for forenoon and afternoon, since of these seven the 
hour is not known: 
BOUTS. ......... mete 2 eee AS) Gt ere Sr ete sro. ‘11. seTotal 
Rte ie sa I 2 3 2 6 7 eric ra ee OM Of 12) nt. SO 
ENE ia ins. s = Pee ear ase 25) TS Ly Sige 0 7 9 ay = EG 
As in the case of the months and the years, it is quite likely that 
here also considerable allowance should be made for conditions of 
Observation. It is reasonable to expect that the number of falls 
recorded in the early morning hours would be less than that for other 
times, since mankind is generally asleep then. That some such allow- 
ance must be made is indicated by the records, for the number of falls 
from midnight to 6 A. M. is only 21, while from 6 A. M. to noon it is 68; 
