REPORT—1847. 
370 
nearly midway between the extremities of the land, forming the weac. 
boundary' of North Africa and Europe, which runs in a general direct:; 
S.S.W. and N.N.E.; and it is highly probable the centres of the crests ofh 
north-west systems of waves pass near its locality, having considerablr «*■ 
sided as they passed over England. The general direction of tht Aotoc ■ 
the south-westerly waves would he that of the land abovc-meulioned, Bni» 
being the general meeting^point of the two systems. 
In addition to the observations having immediate rcfere-Jice tutbeps 
sytnnu-trical wave, and extending throtigh October, November and 
Thave been furnislie«l with observations from Helstone in Corawwlw 
P. Moyle, Esq., and also with observations from Ne.wc^U-on-TjrK f* 
Cieorge Moras, Esq.; from August 1845 to Oeeeniber 184G, thej iiau • 
made at 9 a.m., 3 i».m. and 9 p.m., and contain all the requisite data wa- 
hihiting the gaseous jwessure only, reduced to the level of the sea- • 
locaIitip.s are admirably situated for invwtipting the transits ot tie ^ 
westerly waves, I have made arrangements for the discussion ot these 
vations, witli especial reference to the wind at both stations, as duo ^ 
of IVof. Dove's parallel currents. This iliscussion is not yet sulna'--. 
advanced to preseut any re.sults to the present meeting. 
Phogrers. 
\Vc are now in possc-ssion of materials for examining the great 
cal wave of November, on the occasions of its tran-sits in 
1 845 and 1846; wo also possess a few sets (»f observations for 184“ *” 
Of tlio abovc-nanibd years the examination of 184-2 c 
grt'utest extent; the postscript accompanying my Iwf reitod 
latest information relative to the grtiat wave of 1842, with tlieexcepn 
the discussion of tin? St. IVfersbiirgh and Geneva observation*, I’" ^ 
stiiiilar to the discussion of Mr. Browns observations, as 
report. These stations being considerably removed from those 
subjects of the disciusstou just alluded to, the observations ^ 
ticular mode of treatment in order to incorporate them with the 
by means of the whole, to trace the law of continuity of 
and thus follow them in their progress over the continent of ^ 
respectively puss onward towards the north-east and vr- 
careful disenssioii of the observations at each station in conufj ‘ ^ 
every other set, from stations to the ucstward hitherto exanitf 
to obtain a correct notion of the distrilnitlou of pressure, aud the ^ 
the lines of maxima ami minima over so vast a space as wc ° ; 
rials for examining, is iiecc»sarv before the observations at sw ^ 
eastward are di>eussed, otbcnrU' we lose many of the essential 
waves, whieh In-comc cxceetliiigly modified in their progress, an ^ ^ ^ 
detect them at the more romoti? stations. The Kussiao obsenatu) , 
Ton; Slated, will add most niuterially to our knowledge of thc« 
but the discussion of them on the plan above-mentioned, must 
involv'c niuch labour. I have os yet onlv combined theobserrali^ 
IVlcrsburgh and Geneva, with (‘hose recorded on page '' 
tfiiilcd group they form the most eastern stations. This coto ^ 
proct-tdi-d through the first eight days of November, and 
cajKiblc of explaining all the barometric movements during “ 
It will however be desirable to postpone the further report of th« P 
iiiijuji-y until ilie observations at more of the Ifu&sian station* 
sovcrallv 
h. 
Isu« 
,, a* I *1 ■ •• 
vcrally <liscusscd, with referonco to the more extended 
nd .some impoiiant and valuable information will be eliciteU 
nstrative of the transit of the waves over eastern Europe. 
