MacMahon 3rd Marshalate Republic of France Atmosphere Table in Mercury - Hg (Year of 1874)
0 metre altitude = 0.760 -/m Hg   15.0 Ct grade 1.20 k/g per cubic -/m
1000 " " = 0.675 " "   8.5 " " 1.10 " " " "
2000 " " = 0.600 " "   2.0 " " 1.00 " " " "
3000 " " = 0.525 " "   -4.5 " " 0.91 " " " "
4000 " " = 0.465 " " -11.0 " " 0.82 " " " "
5000 " " = 0.405 " " -17.5 " " 0.74 " " " "
6000 " " = 0.3525 " " -24.0 " " 0.66 " " " "
                             
LEATHER SEALER'S OFFICE, Londonderry, Vt. April 8th 1826 Rory Ely Cole
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