21 



Account of the Progress and State of the Meteorological Ob- 

 servations at Plymouth, made at the request of the Bi'itish 

 Association, under the direction of Mr. W. Snow Harris, 

 F.R.S. {Di-awn up by Mr. Harris.) 



The Meteorological Instruments, now in operation, are as 

 follow : 



1. A Wind Gauge invented by the Rev. W. Whewell. 



2. A Wind Gauge invented by Mr. Osier, of Birmingham. 



3. The Barometer. 



4. The Wet-Bulb Thermometer. 



5. The common Thermometer. 



Professor Whewell's instrument has been carefully attended to 

 by Mr. Southwood, of Devonport. The results of the register 

 accompany this communication. In consequence of Mr. South- 

 wood's removal from Devonport, the instrument, together with 

 the wood work employed in its erection on his house, have been 

 preserved : it will be again set up as soon as possible. 



Ten pounds, voted to defray the expense incurred in the erec- 

 tion, repair, &c., of this instrument, since its employment after 

 the Meeting at Bristol, have been paid to Mr. Southwood. 



The Wind Gauge lately invented by Mr. Osier, and exhibited 

 to the Physical Section at the last Meeting at Liverpool, has at 

 length been set up in a very excellent situation, at the house of 

 Mr. Cox, Optician, Devonport. I am sorry that many unavoid- 

 able delays in the manufacture, &c. &c. of this machine have in- 

 terfered so much with its final completion, that I am unable to 

 send any well digested result of its action. It is, however, now 

 at work, and the Association will, I have little doubt, be amply 

 rewarded for the trouble and expense incurred on account of it. 



Forty pounds was voted for this instrument ; of this 30/. has 

 been paid to Mr. Osier. The attendant expenses on it have 

 amounted to 201. This includes the erection of an apartment 

 of wood in which the instrument works, carriage from Bir- 

 mingham, clock for the register, and sundry other expenses 

 of a minor kind. 



As the daily register must be carefully attended to it will be 

 necessary to provide some slight remuneration for the person 

 employed for this purpose. I should therefore feel obliged if 

 the Committee would recommend the sum of 10/. for the ge- 

 neral current expenses of the next year, should they so think 

 fit. The machine appears an extremely valuable one, and when 

 its register is taken in connexion with that of the barometer and 



