66 REPORT—1850. 
Month. Cotte. | Hoffman. | Merian. |VonHoff.| Total. 
January 24 4 12 31 71 
February 95 5 14 36 80 
Moarehys 3.342. 23 13 6 81 73 
April ...., 26 4. 5 29 64: 
May.is), sake 16 1 11 33 61 
UNA +. indies 28 6 3 33 70 
Sealy τοῦς ets 42 4 7 20 73 
August . 34 6 8 31 79 
September ...| 25 6 12 24. 67 
October 38 2 11 41 92 
November 22 4, 14. 26 66 
December 35 2 15 34. 86 
These approach so near to equality, that upon this limited induction there 
is ΒΗ ground for supposing one season more plentiful in earthquakes than 
another, 
This branch of the subject however cannot be deemed complete until 
from the largest possible catalogue of earthquakes, extending over the whole 
historical period, a similar deduction with suitable precautions shall have 
been made. 
A singular work, now very scarce, was published in 1729, by a professor 
at Lima, entitled ‘L’Horloge Astronomique des Tremblemens de Terre,’ in 
which he undertakes, from a discussion of 108 earthquakes occurring in 
his own time, to predict that of their recurrence; the period of tide and 
state of the moon are the immediately influencing causes, according to him, 
as well as the moon’s place in the zodiac; the eritical time is confined to six 
hours and some minutes of the horary circle, within which the moon is on 
the meridian of the place ; and he says he has confirmed his results by 148 
observations in 1729, and 70 in the subsequent year, which proved correct. 
Mr. Edmonds, in the Cornwall Polytechnic Journal, has also endeavoured 
to connect the oceurrenee of earthquakes with the period of the moon; he 
shows that several of the most disastrous have occurred the day after the first 
quarter. 
[ mention these latter authors, not as attaching any importance to their 
conclusions, but as showing to those who will consult the originals, the 
wrong direction in which such researches have been made. 
As respects observed direct connexion with meteorological phenomena, 
the following comprises most of the information to be had :— 
Ist. The Weather generally. 
Although in numberless accounts we read of peculiar appearances before 
the earthquake, as red lurid skies, red and blue suns, &c., and during the 
continuance of earthquakes, of strange appearances and threatening portents 
in the sky, yet, judging from all the narratives of the best observers, there 
seems to be no ground for supposing that there is anv connexion between 
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