Wr ccitpoyn te aa eo RBPORTSIBEBE ry con ENS EE KO 
_.The. autumn and-winter together here present a number, having nearly. 
the same ratio to that of spring and summer together, as 3: 2, 
And at the critical periods of the year, of two months each, we have 
Winter Solstice” V..cg sede cab nek . 133 
Spring Equinox ....... Sas Bos 81 
Sunimer. Solstice |. \e.)eh > Se se oeeas 65 
Autumnal Equinox,,, .sssacaessen. U2 
while, as respects horizontal direction, 
S.,..,to N, AOA Aaa By icon Cah 
NG), SEW. caesar sisizesie Ord 
SNe Roe Rae 5 On Be ate, oe 
S\ Br," We Wa fa eee eae - » e+ O89 
e +») N. ee . eee 2:00 
Se Wess Dies tot aks ie pees Ill 
sala named cies attmeehe elects 0°78 
NMRA Saieiecons so. orc epee mia 
and, by calculations on before-given principles, a mean general horizontal 
direction of 
S. 7° 9' E. to N. 7° 9! W. 
which corresponds pretty well with the general direction of the river valley. 
Observation, however, indicates, in most of the localities upon its banks, 
frequent and wide occasional departures from such direction; and, indeed, 
in the broken country forming a large portion of its length it is improbable 
it should be otherwise. 
The basin of the Danube.—This vast tract of country has been left very 
ill-defined as to its limits by Perrey, as respects the subject of his research. 
His catalogue shows that he does not limit himself precisely to the catch- 
ment of this mightiest of European rivers, but, in fact, includes something 
like the whole of that vast tract of country between a line on the north, 
reaching from Prague to Kherson; and on the south, from Venice to Con- 
stantinople, and even occasionally stretching beyond these limits. 
TasLEe X.—Earthquakes of the Basin of the Danube. 
With date of 
Earthquakes with date of Day or Month. Satan ante 3 Es 
: ; oS 3 e's 
Re 5 Hail Vesa sei) MOREE eae 
Century. Belebebs re = 8 a abies E = 3 - 5 Total. 
S/eislalelele|/s/8/2]| 8 a/ 25 | 898 SH 
E\SIel al Ele (S/ Sl eleisis/82 | ear. 
SleleleiSlFiél/alalé6lazlal= n 
We to XV...) (1)'s 1) 3 py emia HN BD oe HE ee | +. ll 19 
BEV avis Speed test 3} 4) 1; 1 3 Vial 1 16 {| 35 
GY Ieee eos | ple ie ia glibc TD] Peo es iat Fas) pie ll} 31 
XVIII. UT YO) Ay She 8] C250 Gs 8 eae erga | lag 2 4 88 
XIX... 34/15) 9) 8) 12) 8] 16} 11] 11] 16} 10) 12 1 1 1] 145 
26] 25 | 18 
Summer Autumn 
67 6 
Perrey remarks, that although the total number of shocks recorded appears 
