METEOROLOGICAL OBSERVATIONS AT PLYMOUTH. 23 



The general results^ which accompany this comniunicationj 

 and which are exhibited in Plates 10, 11, 12, must be consi- 

 dered merely as corrections of similar statements exhibited in 

 my fix'st report ; the former being arrived at by a more exten- 

 sive series of observations. It will be seen by an examination 

 of Table III., Plate 12, that the approximations in calculating 

 the hourl)' temperatures, on tiie supposition that they may be 

 represented by parabolic abscissfe, are much nearer than in the 

 similar table and plate before given. 



Of £50 voted for these observations, £35 has been spent in 

 defraying the expenses attendant on them up to June last, 

 leaving a balance of £15 ; part of this has been expended in aid 

 of Mr. Osier's wind-gauge. 



The labour attendant on the reduction and discussion of the 

 observations made hourly with these last-named instruments 

 being now very considerable, it becomes necessary to employ 

 competent persons to assist in working out tlie ordinary ai'ith- 

 metical operations, &c. I would therefore suggest to the Com- 

 mittee the propriety of recommending a sum not exceeding £40 

 for this and other attendant expenses until the next meeting of 

 the Association, when I hope to have the pleasure of submitting 

 to the Section a full report of the results obtained from the 

 respective registers. 



W. Snow Harris. 



32, Union Street, Plynioutb, 

 August 20, 1838. 



Table I. 



