146 Miscellaneous Intelligence. 
The estimation of time between the disappearance of the light and 
the arrival of the sound was very different, as made by different per- 
sons, at several minutes, even as high as five. The latter supposition 
would make the meteor almost extra-atmospheric, but doubtless the 
period of five minutes is much too high, and we infer that the meteor, 
like that at Weston, was fully within the atmosphere, and probably not 
over fifteen or twenty miles from the earth when it exploded. It was 
seen through 250 miles from the line of Virginia, to Sumpter district 
i uth Carolina, and from east to west it was seen through oimty 
miles. 
Further Contributions to Anemometry ; by Prof. Patiuips, (Proc. . 
2. 
Brit. Assoc., in ae No. aboot ah to his former reports on 
] 88, ; 
should be independent of mechanical movements, momentum and fric- 
tion. e wished to register the wind by one of the effects of the dis- 
thi 
placement of its molecules, not the movement of its mass. [Tor 
purpose only one method has occurred to him as sufficiently oh is 
viz., the evaporation of a liquid. He had experimented on water, sa 
fine solutions and alcoholic mixtures, and he found reason to think shat 
with pr = these liquids an rae really indicating the move- 
ment of wind by the registration of the evaporatton which the wind 
causes, is west cible. Such an rinsing need so but a very 
small space, and will have the desirable quality of bei ost accurate 
in those very low velocities of wind which elude exiirely Lind’s Ane- 
eet and are scarcely sensible by any registering machinery. It 
only an Hebei or iadionior the momentary velocity. vapo" 
ration from the wet bulb may itetine be abandoned ; the common 
thermometer with its bulb clear of the frame will answer the purpose 
of experiment, in every conceivable instance.* 
* It appears from Prof. Forbes’s ‘ —— on aera to the —— Associa- 
tion in 1882, that the idea of ESeekrins thermometer ————— velocity 
of wind was entertained by Prof. 
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