XLV. 619 



P.., .NH - Plvmobth. Lat. 50" 22' N. Long. 4° T W. Gremw. 

 England. - P" ■""" „^^,^^ „f Observation .o oblain the true 



Degrees of Fahrenheit. 



Hours. 



7. 2 

 2 

 1 



7. 1 



9.12.3.9 



7. 2.2(9 



-0.77 

 -0.59 



-1.10-1.87-3.04-3.47-3.02-3.24 

 -0.79-1.24-2.00-2.18-2.05-2.21 



-0.83 -1.31 

 )11 0.07,-0.07 



-1.87 -2.77I-4.2O -2.52 -2.81 -2.84 

 0.141 0.231 0.091 O.lll 0.051 0.25 



'^;i;rr;;:mbers without sigaraust'be added ; those with the siga - mu.t be subtracted. 



50 



