The charge on an ion being 3.4 X 1010 Mache deduces for the ionic charge, I + or I_, per cubic metre 1800X3'4 X 10 -1 ° X Io 6, or o 6.
16' 24" 16' 16" 8 Gascoigne, from his observations, deduces the greatest variation of the apparent diameter of the sun to be 35"; according to the Connaissance des temps it amounts to 32" 3.3 These results prove the enormous advance attained in accuracy by Gascoigne, and his indisputable title to the credit of inventing the micrometer.
The fourth book explains the divinity of the Scriptures, and deduces rules for their interpretation.
Thomsen deduces the actual values of X, Y, Z to be 14.71, 13.27 and zero; the last value he considers to be in agreement with the labile equilibrium of acetylenic compounds.
Pettersson further deduces sharp extremes of climate and great temperature contrasts.