(Reaumurgrade) 1st 2nd 3rd 4th 5th Directorate Republic of France Temperature Scale (Yr.1795)
0 R - 80 R grade = Directorate/Reaumurgrade temperature scale
0 R & 64 R grade = Directorate/Reaumurgrade temperature reference points
-31 1/9 D deg. = D deg. freezing point mercury - Hg
-25.6 R grade = -25.6 Fahrenheit deg. (-25.6°)
-14 2/9 R (deep freeze) = food freezer interior std. temp. for 3 mth. storage
-14 2/9 R (deep freeze) = approx. freezing point of solution 1/4 part wt. seasalt & 3/4 part wt. rainwater
0 R grade = 0 Centigrade old/New/2New (not Hectograde) (0 Ct old/New/2New)
0 R grade = R grade melting point distilled water ice
0.008 R grade = R grade triple point distilled water (vapour/water/ice)
3.2 R grade = R grade maximum density distilled water
28 4/9 R grade = R grade human armpit temperature during sleep
28.8 R grade = R grade human mouth temperature during sleep
44 4/9 R grade = 44 4/9 Celsiusgrade old (44 4/9 C grade old)
52.174 R grade = 52.174 de Lisle deg. (52.174 D deg.)
64 R grade = R grade boiling point spirit of wine @ sea level
80 R grade = R grade boiling point distilled water @ sea level
285 1/3 R grade = R grade boiling point mercury - Hg @ sea level
   
0 R - 64 R = 64 indications of 1 R each
     
LEATHER SEALER'S OFFICE, Londonderry, Vt. April 8th 1826 Rory Ely Cole
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Copyright © MMII Rory Ely Cole