XX 



former communication. By Sir Jolm Frederick William Herschel, 

 Bart. K.H. F.R.S. &c., in a letter to Samuel Hunter Christie, Esq. 

 Sec. R.S page 398 



Boring Register, Bow Island, South Pacific. By Captain Edward 

 Belcher, R.N 399 



Observations on the Blood-corpuscles, particularly with reference to 

 opinions expressed and conclusions drawn in papers * On the Cor- 

 puscles of the Blood,' and ' On Fibre,' recently published in the 

 Philosophical Transactions. By T. Wharton Jones, Esq. F.R.S... . 431 



Wind Table, from observations taken at the summit of the Rock of 

 Gibraltar. By Colonel George J. Harding 432 



Spermatozoa observed within the Mammiferous Ovum. By Martin 

 Barry, M.D. F.R.S. L. and Ed 432 



Experimental Inquiry into the cause of the Ascent and Continued 

 Motion of the Sap ; with a new method of preparing plants for 

 physiological investigations. By George Rainey, Esq. M.R.C.S... 432 



1843. 



On the Nerves. By James Stark, M.D 434 



A Letter from Prof. Hanson to G. B. Air}^ Esq. F.R.S. A.R. ' On a 

 New Method of computing the Perturbations of the Planets whose 

 eccentricities and inclinations are not small.' 435 



Variation de la Declinaison et Intensite Horizontale observees a Milan 

 pendant vingt-quat erheurs cons^cutivese le 25 et 26 Novembre, et 

 le 21 et 22 Decembre 1842. Par Prof. Carlini, For. Memb. R.S... 435 



On the minute structure of the Skeletons or hard parts of Inverte- 

 brata. By W. B. Carpenter, M.D 435 



Observations on certain cases of Elliptic Polarization of Light by Re- 

 flection, By the Rev. Baden Powell, M.A. F.R.S. Savilian Pro- 

 fessor of Geometry in the University of Oxford 436 



Variation of the Magnetic Needle as observed at Washington City, 

 D. C, from 31^ 30°^ July 24th to 3^ July 25th, 1840, inclusive (Got- 

 tingenmean time). By Lieut. Gillies, of the United States Service 437 



Experimental Researches in Electricity. — Eighteenth Series. By INIi- 

 chael Faraday, Esq. D.C.L. F.R.S.— Section 25. On the Electricity 

 evolved by the Friction of Water and Steam against other bodies... 43/ 



Magnetical Term-observations made at the Observatory at Prague, for 

 September, October, November and December, 1842. By Professor 



Kreil 439 



On the Structure and Mode of Action of the Iris. By C. R. Hall, 

 Esq 439 



Tide- Observations at Tahiti. By Captain Edward Belcher, R.N 440 



On Fissiparous Generation. By Martin Barry, M.D. F.R.S. L. and 

 Ed '. '. 441 



