For this purpose the following table, showing the distribution of earthquakes in different countries during the nineteenth century, has been compiled. The arrangement is mensual. Where the number of earthquakes in any month is above the average, the number is printed in large type; where below the average, in small type. EARTHQUAKES OF THE NINETEENTH CENTURY, CHIEFLY FROM PERREY. Key: Jan January Feb February Mar March Apr April May May Jun June Jul July Aug August Sep September Oct October Nov November Dec December Ave Average per month +------------------------------------------------------------------------------+ | |Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|Ave | |-------------------------+---+---+---+---+---+---+---+---+---+---+---+---+----| |Scandinavia and Iceland | 17| 11| 11| 7| 7| 6| 8| 8| 10| 10| 11| 6| 9·3| |British Isles and | | | | | | | | | | | | | | | Northern Isles | 9| 9| 10| 7| 8| 6| 5| 11| 12| 8| 11| 12| 9 | |France, Belgium, Holland | 27| 17| 21| 13| 13| 8| 15| 17| 15| 17| 21| 25|17 | |Basin of the Rhone | 12| 12| 8| 3| 3| 2| 2| 4| 6| 6| 8| 14| 6·6| |Basin of the Rhine and | | | | | | | | | | | | | | | Switzerland | 15| 17| 13| 12| 11| 6| 12| 11| 10| 17| 24| 25|14 | |Basin of the Danube | 14| 15| 9| 8| 12| 8| 16| 11| 11| 16| 10| 12|11·8| |Spanish Peninsula | 10| 5| 6| 7| 4| 6| 10| 5| 9| 11| 7| 5| 7 | |Italian Peninsula, | | | | | | | | | | | | | | | Sicily, Sardinia, | | | | | | | | | | | | | | | and Malta | 44| 44| 48| 43| 40| 34| 41| 46| 27| 45| 26| 39|39 | |Turco-Hellenic Territory,| | | | | | | | | | | | | | | Syria, Ægean Islands, | | | | | | | | | | | | | | | and Levant | 22| 20| 10| 10| 16| 15| 14| 22| 14| 17| 12| 14|16 | |Northern Zone of Asia | 4| 6| 6| 4| 4| 3| 5| 7| 6| 3| 4| 5| 4·7| |1876–1881, Japan (Tokio | | | | | | | | | | | | | | | area) | 39| 41| 41| 30| 33| 30| 27| 21| 10| 28| 34| 43|31·4| |Japan (large earthquakes)| --| 5| 3| 3| 1| --| 5| 4| --| --| 1| 5| 2 | |Algeria and North’rn | | | | | | | | | | | | | | | Africa | 5| 2| 6| 7| 3| 2| 2| 5| 1| 4| 8| 1| 3·8| |United States and Canada | 4| 4| 3| 3| 3| --| 4| 6| 3| 2| 7| 5| 3·8| |Java, Sumatra, &c., | | | | | | | | | | | | | | | 1873–4–5–7 and 9 | 35| 30| 38| 33| 22| 36| 27| 40| 24| 35| 30| 26|31 | |Mexico and Central | | | | | | | | | | | | | | | America | 3| 2| 2| 2| 6| 2| 2| 1| 1| 3| 2| 3| 2·5|