4G4 PROFESSOR K. PEARSON AND MTSS A. LEE ON THE DISTRIBUTION 
be accompanied by a fall at C, appears capable, when extended, developed, and 
illustrated by actual numerical examples, of throwing considerable light on the 
nature of barometric variation.^ 
To show the importance and truth of the principle, a table has been formed for 
the deviations from the means at Southampton and Laudale, when the barometer at 
Stonyhurst does not differ by more than inch from its mean value, 29"'94. 
In the course of two years 31 values were found, and with only one exception, 
posftibly a misreading, the barometer at Lavdale was always above or below the mean, 
according as it was below or above the mean at Southampton : see Table XIII. 
1 ABLE XIII. — Deviations of Barometer from the Means at Southamjrton (29''’98) 
and Laudale (29"’86) when the Barometer does not differ more than of an 
inch at Stonyhurst from its Mean. 
Stonyhur.st 
height. 
O 
Southampton 
deviation. 
Laudale deviation. 
29-95 
+ -15 
--20 
29-94 
+ -11 
--27 
29-94 
--I2 
+ -07 
29-93 
--07 
+ -12 
29-94 
+ •03 
--11 
29-94 
--07 
+ -00 
29-94 
+ -09 
--13 
29-95 
+ -07 
--05 
29-93 
--03 
+ -03 
29-94 
+ -04 
--07 
29-93 
--00 
-i--04 
29-95 
+ -07 
--06 
29-94 
+ -12 
-13 
29-94 
+ -09 
--07 
29-95 
+ -25 
--18 
29-94 
--04 
+ -01 
29-93 
--19 
+ -30 
29-95 
+ -04 
--08 
29-93 
--06 
+ -06 
29-94 
+ -03 
--08 
29-94 
--04 
+ -17 
29-95t 
+ -04 
+ -01 
29-95 
+ -08 
--00 
29-95 
+ ■11 
--18 
29-95 
--14 
+ -04 
29-93 
+ -02 
--10 
29-93 
--08 
+ -12 
29-95 
+ •1-3 
--22 
29-94 
--06 
+ -24 
29-93 
+ -06 
--18 
29-95 
--19 
+ -14 
The corresponding apparent paradox in the theory of heredity is referred to in ‘ Pliil. Trans.,’ 
A, vol. 187, p. 289. 
I This is o.n exception to the general rule, that for the mean at Stonyhurst a high harometer at 
