CONTENTS. 



of the Prefident's Effay on the Variations of the Atmofphere. 



Page 



CHAP. I. Of Evaporaiion ■ - - . 278 



Sect. i. Of the Influence of Heat - . . 275 



2. Of the Infiuence of Affinity ■> . - - . 298 



- 3. Of the Influence of Wind - . - - 311 



— ^— 4. Of the Influence of Ele&ricity and Light - - 314 



CHAP. II. Of the State of Vapours fubflfling in the Atmofphere 330 



CHAP. III. Of the Temperature of the Atmofphere - - 3^5 



Sect, i. Of the Temperature cf the Summer Months - - ib. 



2. Of the Temperature cf the Winter Months - - 2i75 



— — 3. Of the Origin of the general Trade Winds - - 390 



4. Of variable Winds .... ^96 



5. Of the Variations of the Temperature of the Summer 



and Winter Seafons that take place in different 



Tears - - - - - ^ 407 



6. Of the Temperature of the Southern Hemifphere • 417 



CHAP. IV. Of the Denftty of the Atmofphere - - 424 



CHAP, v.— —Of Precipitations from the Atmofphere • - 474 



Sect. i. Of Atmofpheric Eledricity • - 475 



2. Of Dew - - • . . 479 



2>- Of 'he Haze of the Tear \j9, 1 ... 482 



4. Of Rain ..... 487 



CHAP. VI. Prognq/lics - - - . 497 



Appendix ..... 499 

 Synoptical View of the State of the Weather at Dublin 



in the Tear 1801 ■ - ' - - 509 

 Vol. VIII. ■ * L 1 



