190 Humboldt on Isothermal Lines, and the [March, 



1 Coast of Labrador. Two years of observations. Floating 

 ice towards the east. A transatlantic climate. Mean tempera- 

 ture of Oct. about 34-6°; Nov. 26-6°. 



s Centre of Lapland. A European climate. Fine vegetation. 

 June, 49-4°; July, 59-6°; Aug. 56°; Sept. 41-8°; Oct. 27.5°; 

 Nov. 12'4°. Inland situation. Specimen of a continental 

 climate. 



3 Eleven years of observations, calculated afresh in decads by 

 Wahlenberg. Thermometer verified by Saussure. Mean tem- 

 perature of seven months of the year below 32°. Winds blow 

 from Italy in the winter. Minimum observed in the winter 

 — 0-4° ; in Aug. at noon, in the shade, maximum 54*5° ; the 

 nights in Aug. frequently from 33*8° to 29*3°; the mean tem- 

 perature of Oct. 29-3° represents that of the whole year ; at the 

 Col de Geant, 10,598 feet high, the mean temperature of July 

 is 36-5°. We find 32° to be the mean temperature in Europe, 

 in 45° of latitude, at 5,400 feet high ; at the parallel of the 

 Canaries, at 12,300 feet ; in the Andes, under the Equator, at 

 16,500 feet. 



4 Buch, Voy. en Norw. ii. 416. Specimen of the climate of 

 the islands and coasts in the north of Europe. April, 30° ; May, 

 33-8° ; Oct. 32° ; Nov. 25-8°. At Alten, lat. 70° ; mean temper- 

 ature of July, 63-5° ; a continental climate. 



6 Finland, eastern coast. May, 40-8°; June, 55°; July, 61-6°; 

 Aug. 56-6°; Sept. 46-6°; Oct. 38-6°; Nov. 24-6°. Julin and 

 Buch. 



6 Eastern coast of Western Bothnia. Dr. Ncezen. March, 

 23-2° ; April, 34° ; Oct. 38-2° ; Nov. 24-6°. 



7 Euler. Mean temperature of the year, 38*2°. Inochodzow. 

 Act. Petr. xii.519— 533. 



8 Two years. Berlin, in the Mem. de FAcad. de Drontheim, 

 iv.216. April, 34-4°; May, 50-8°; Oct. 39-2°; Nov. 27-8°. 

 Climate of the west coast of Europe. 



9 Four years. Journal de Phys. xxxix. 40. A continental 

 climate. Winter colder, and summer warmer than at Peters- 

 burg. Eastern part of Europe ; height as taken from Stritter. 

 Chamounie, lat. 46° 1'; long. 3° 48' E. ; height, 3,168 feet; 

 mean temperature, 39-2°. 



10 Twelve years. Kirwan. Cotte, mean of the year, 41*2°; 

 of the summer, 67-4°, too high. West coast of Finland. 



11 Observations from 1774 to 1804, made by Mallet, Prosperin, 

 Holmquist, and Schleling, calculated by M. De Buch. Voy. de 

 Norw. ii. 309. It is, perhaps, the place the mean temperature 

 of which is the best determined. Winters more serene than at 

 Stockholm; colder on account of the radiation of the ground and 

 the air. 



14 Thirty-nine years of observations, 15 of which are very 

 good. Wargentin. Cotte, mean temperature of the year, 44-2"* 

 Five months below 32°, as at Petersburg. 



^ 



