Meteorological AxiomSi 149 



TI. 



Of (be Thermometer. 



1. The extreme degrees of heat are almoft every where 

 tlie fanie : this, however, is not the cafe in regard to the 

 extreme degrees of cold. 



2. The thermometer rifes to its extreme height oftener in 

 the temperate zones than in the torrid zone. 



3. It changes very httle between the tropics ; its varia- 

 • tions, hke thofe of the barometer, are greater the more one 



proceeds from the equator towards the poles. 



4. It rifcs higher in the plains than on mountains. 



5. It does not fall fo much in the neighbourhood of the 

 fea as in inland parts. 



6. The wind has no influence on its motions. 



7. Moifture has a peculiar influence on it, if followed by 

 a wind which difperfes it. 



8. The greateft heat, and the greateft cold, take place 

 about fix weeks after the northern or fouthern folftice. 



9. The thermometer changes more in fummer than ia 

 winter. 



10. The coldeft period of the day is before fun-rife. 



11. The greateft heat in the fun and the fliade feldom 

 takes place on the fame day. 



12. The heat decreafes with far more rapidity from Sep- 

 tember and OtStober, than it increafed from July to Sep- 

 tember. 



13. It is not true, that a very cold winter is the prognoftic 

 of a very hot fumnicr. 



III. 



Of the Wind. 



1. The winds between the tropics are regular and period- 

 ical. 



2. The more one removes from the tropics, the more 

 changeable they are found. 



3. The winds are more changeable in winter than in fum- 

 mer, and towards the equinoxes than at any other time. 



4. it is not true, that the v.iiid which blows about the 



time 



