AMERICAN PHILOSOPHICAL. SOCIETY. 



397 



TABLE II. 



Mstractof a Journal of the Stale of the Thermometer at J^azareth, Pennsylvania, during the years 

 1787, 1788, 1789 and 1790, by Charles Golthold Reichle. 





Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Mean 

 Annual 

 Temp. 



1787— Greatest Heat. 



50=> 



48° • 



68° 



773 



78= 



89° 



92° 



90° 



88° 



72° 



70° 



52° 





Least Heat. 



11 



10 



26 



23 



44 



45 



59 



55 



42 



24 



21 



16 



52° 



1788— Greatest Heat. 



44 



50 



60 



79 



88 



9a 



90 



88 



88 



76 



76 



62 





Least Heat. 



& 



■13 



4 



31 



40 



50 



62 



52 



44 



20 



24 



2 



50 



1789— Greatest Heat. 



50 



44 



60 



72 



72 



99 



92 



93 



84 



68 



66 



62 





Least Heat. 



10 



S 



8 



32 



40 



51 



62 



44 



40 



31 



22 



16 



50 



1790— Greatest Heat. 



56 



54 



68 



75 



90 



88 



90 



89 



84 



72 



56 



38 





Least Heat. 



10 



3 



00 



31 



46 



48 



56 



54 



40 



28 



20 



00 



49 



TABLE III. 



Jlbstracl of a Journal of the Stale of the Thermometer at Philadelphia, during the years 1829, 1830, 

 1831, 1832, 1833, 1834, 1835, 1836, 1837 and 1838, by Thomas Heioson, M.D. 





Jan. 



Feb. 



Maicb. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Occ, 



Nov. 



Dec. 



Mean 

 Annual 

 Temp. 



1829— Greatest Heat. 



51° 



44° 



63° 



78° 



88° 



88° 



88° 



89° 



85° 



70° 



60° 



62° 





Least Heat. 



7 



8 



24 



34 



44 



56 



56 



60 



44 



32 



24 



25 





Mean Heat. 



30 



25 



35 



51 



64 



70 



72 



61 



61 



52 



43 



43 



50° -7 



1830— Greatest Heat. 



51 



50 



66 



78 



78 



80 



90 



86 



83 



70 



65 



60 





Least Heat. 



10 



10 



20 



33 



44 



53 



60 



58 



44 



46 



36 



8 





Mean Heat. 



33 



30 



41 



53 



63 



68 



76 



72 



64 



54 



50 



37 



53 -5 



1831— Greatest Heat. 



60 



46 



66 



73 



90 



90 



88 



87 



82 



74 



62 



40 





Least Heat. 



6 



ro 



24 



32 



37 



59 



54 



54 



46 



36 



32 



8 





Mean Heat. 



27 



27 



44 



51 



62 



72 



74 



74 



64 



55 



42 



23 



51 -2 



