and the Distribution of Heat over the Globe. 37 
Strasburg, Lat. 48° 34' ; height, 480 feet ; mean temp. 49°.^8. 
Herrenschneider. 
34 Dr Young. Mean temp, varies from 4T°.84 to 51°.62, 
( Lectures , ii. 453.) Cavendish, (Trans. 1788, p. 61.), 48°.T4, 
Roebuck, Hunter, and Kirwan, 51 °.62. Horsley, 51 °.26. Ac- 
cording to Kirwan, the four seasons in London are, 39°.56, 50°.9, 
64°. 76, 51°.98; at Paris, 36°.68, 51°.08, 65°.84, 52°.52 ; from 
which results, London, 51°.62; Paris, 51°.44. Cotte ( Journ. de 
Phys. xxxix. 36.) thinks London is 51°.26, and Paris, 52°.34. 
The difference which we observe in cultivated plants depends 
less upon mean temp, than upon direct light, and the serenity 
of the atmosphere. 
35 Seven years. Cotte. Lisle, 48°.38; Rouen, 51°.44; 
Cambray, 51°.98; Soissons, 53°. 42; Rethel, 53°.24; Metz, 52°.88; 
Nancy, 51°.98 ; Etampes, 51°.08 ; L’Aigle, 50°.9 ; Brest, 54°. 14; 
Mayenne, 51°.98. 
36 Mohr, and Van Swinden. Five years. 
3 7 Thirteen years. Temperature rather too high ? 
38 Eleven years. Van Swinden. From 1771“”1 783. Mean 
temp. 51°.26. 
3 9 Concave transatlantic summit. Seven years of observa- 
tions give 54°.86 ; for the four seasons, 33°.98, 53°.06, 75°.2, 
56°.12. Rush, 52°.52, (Drake’s View of Cincin. p. 116.) Coxe, 
54°.14. M. Legaux finds for 17 years, for Springmill on the 
Schuylkill, Lat. 40° 50' ; mean temp. 53°.42. Springs, near 
Philadelphia, 54°.86, Warden. 
4 0 Two years only. Retif de la Serve. The thermometer 
sometimes descends to — 4° in the parallel of Naples ! Springs, 
54°.86. Ipswich, Lat. 42° 38' ; mean temp. 50°. Williamsburg, 
in Virginia, 58°.l. Cotte and Kirwan. Transatlantic climates. 
4 1 Transatlantic climates west of the Alleghanys. Good ob- 
servations, from 1806— -1813. Col. Mansfield, (Drake, p. 93.) 
Minimum of the winter, from 5° to — 9 -4 ; Jan. 1797, as low 
as — 16°. 6, for 39° latitude. Maximum 89°.6 to 107°.6 in the 
shade, without reflection ; J of all the winds SW. ; springs near 
Cincinnati, 54°.32. Little snow falls ; but it is abundant between 
Lat. 40° and 42°. 
4 2 Three years only. Bougourd. Dijon, height, 810 feel ; 
