Dr. G. Bird on the Nature and Properties of Albumen. 15 

 Observations on the year 1837. 



Not Corrected 



corrected. and reduced to 32°. 



Barometer highest on 15th Feb.n q^./iqo o.cx.A.r.'i • 



Wind SE., light. Therm. 56° / ^^ ^^^ ^^ ^^^ 



Lowest 19th Jan. SE. heavy andj^ OQ'SQ^ 29*339 



suddenly changingtoNW. Th.61 J 



1-088 1-118 



Mean height corrected 30*053 



Deduct mean of vapour •54-2 



29-511 

 Mean heat... 67'18 

 Greatest...... 83-5 



Least 47* 



Observations on the last six months. 



Solar heat (greatest on blackened bulb therm.) 



July Aug. Sep. Oct. Nov. Dec. 

 107° 115*> 103° 98° 89° 88° 



On the 14.th of November an aurora borealis was seen be- 

 tween G and 7 p.m. centring on the north. Streamers ex- 

 tending towards the Pleiades, and converging towards Cassio- 

 peia, never rising so high. Stars, except of first magnitude, 

 not seen through it. Colour, except streamers, a deep red. 

 At its close, about 7 p.m., a haze covered the whole space, 

 and there was lightning in the SW. Barom. 30-024. Therm. 

 72°. Wind SW. fresh. During the appearance the gusts 

 of wind were frequent and strong. 



The barometer had been gradually falling from the 10th, 

 when it was 30-400; at 4 p.m. of the 14th it was down to 

 29-998. 



Bermuda, March 31st, 1838. 



IV. Experimental Researches on the Nature and Properties of 

 Albumen, S^c. By Golding Bird, M.D., F.L.S., G.S., ^c. 



Lecturer on Experimental Philosophy at Guy's Hospital.* 



N my former papers on this subjectf, I have given an ac- 

 count of some of the properties of free and combined al- 

 bumen, chiefly in relation to carbonic acid and electric currents ; 

 and I hazarded a remark that these investigations would pro- 

 bably serve to point out the presence of albumen in certain 



* Connnunicated by the Author. 



t [See Lond. and Edinb. Phil. Mag. vol. ix. p. 109.] 



I 



