( 549 ) 



if /( i.s ail odd mimbcr, wlicrc 



(2n -p-l)(2n-j,-2)...i2n - 2p) ^ 



^n ^= ; 0„ — 1, + 2 . . . <'2h — » — 1 



p. 



^ ^2n-p-2)i2n-p-3)...{2n-2p-l) 



^r =-- ^^7 b„-,, + ...Mn-p-2 



{2n—p — 3) (2« — /) — 4) . . (2h — 2p — 2) 



l>n—p + 2...l>-2n — p — Z 



p.' 



en 



{2n - p - 1) (2/, - p-2)... i2n - 2;.) 



/» ; "y- + 1 . . . 02,1 - u - 1 



(2m — p — 2) (2« — p — 3) . . . (2« — 2;? — 1) 



(2n — p — 3) (2m — p — 4). . . (2h — 2/> — 2 ) 



«/< — ; — ^'i) 4- 1 . . . . ^2» — » — 3 



p . 



( n-p^l){H-p)...{n-2p^ 2) 

 «/- = -; t',.+ l...(>n-p + l- 



It is of importance to remark that 



?.„ -^ \ z^ III),,, J«„_iz=l, /„_2^(« — 1) //„_!, ö„_2=:l etc. 



and that the determinants in tlie second members of the equations 



(I) and (II) after tiie substitution /)^,=iv-\- p, are respectively poly- 



7i(n — 2) (w — 1)= 



nomia of decrees ^ and in v. 



4 4 



Meteorology. - "On frequency curves of barometric lieights." By 

 Dr. .1. P. VAN DER Stok. 



1 . The records of barometric heiglits, corrected for temperature, 

 observed at Helder three times a day during the years August 1843 

 to July 1904, have been chosen as an appropriate material for this 

 inquiry into the nature of barometric frequency curves. The number 

 of observations for each month amoimts to : 



January 5673 July 5673 



February 5169 August 5766 



March 5646 September 5560 



April 5490 October 5766 



May 5673 November 5580 



June 5490 December 5766 



ToUil 67252 



