ON THE FACTS AND THEORY OF EARTHQUAKE PHENOMENA, 13 
presenting considerable similarity to the results for France as a whole. 
The following are the proportional numbers for the months :— 
. 5 M B 
B| B glaleial4 
Ss 5 ra fo ° 3 o 2 
Alelaldal/szaiAl/Sil4ajlaliaolssza 
1°69} 1:31] 1-06) 0°66) 0°71) 0°71) 0°59} 0°59} 1°24) 0-98) 0-92) 1°57 
OPO NV CER EEE laces ies | LSO, 
oe PEM ts, wick ek bas 2 tes “OOr 
3» Summer See erases 0°81 
oP GON sore a te Sisigte Spree G 
and for the two months each of 
Winter Solstice ..........00.... 1°53 
Spring Equinox \, ia)...’ i. 08 -. O81 
Summer Solstice........ Lapeer ae 061 
MAPA ELQUINOX 5 ch s's'o'e t's c'e 0 6 POs 
and as to direction, following his usual method, Perrey arrives at a mean 
general horizontal resultant,— 
S. 9° 44! W. to N. 9° 44’ E. 
This is not far from the general line of the course of the Lower Rhone ; 
but Perrey remarks that numerous examples occur of shocks whose alleged 
horizontal movements were orthogonal to the river-valley, and to the 
meridian. 
We pass on to the basin of the Rhine, which, in its entire extent, com- 
prehends, in fact, a large portion of Switzerland, but whose precise limits 
Perrey does not define. 
Tasre [X.—Earthquakes of the Basin of the Rhine and Switzerland. 
With date of 
Earthquakes with date of Day or Month. ee 
Season only. ate 
Centui y. , 5 a legs gig 185 
tee aleleisi ae la 8 |s s| Total 
He] e)])e] 2 g\g sc wd | 3 
a|/si3s ; 3/3|/2/5/38] r=) ad 
=] - Le | mh} 2 SS ~ ° = 2g se 
Bi\si|S/BIS|S/2/s/2 18/2/28) 48 | Be 
SIBPISIAISlSA [A l[ a] a2lol|a4sa a| ne? 
=| ee) 1 1} 1 DIE cal * 19 
Dl) ces] owe]! cus] ven] car} oss] « 
Ssesccoees| oes) 2) 2) 2) f2) BS] SL} LZ] wee] cee 
+ seeeee 
| 15] 17} 13] 12] 11] 6| 12] 11] 10] 17| 24] 25} cc. | ce. ot. ] 173 
-| 62) 54) 44) 37) 36 30) 35} 30) 36} 36) 58) 71) 2 1 25 | 557 
Winter Spring Summer | Autumn 
160 103 101 165 
