PAGE 



On M. J. Nickles' claim to be the Discoverer of Fluorine in 

 the Blood. By George Wilson, M.D., F.R.S.E., Re- 

 gius Professor of Technology in the University of Edin- 

 burgh, ..... 463 



Donations to the Library, .... 469 



Mondayt 2d March 1857. 



On the Functions of the Spinal Cord. By Professor Hughes 



Bennett, ..... 470 



On the Delta of the Irrawaddy. By T. Login, C.E., Pegu. 



Communicated by William Swan, Esq., . 471 



Notice of a Collection of Maps. By A. K. Johnston, Esq., 477 



Monday, l^th March 1857. 



Notice respecting Father Secchi's Statical Barometer, and on 



the Origin of the Cathetometer. By Professor Forbes, 480 



History of an Anencephalic Child. By Dr Simpson, . 482 



On certain Laws observed in the Mutual Action of Sulphu- 

 ric Acid and Water. By Balfour Stewart, Esq. Com- 

 municated by Dr G. Wilson, . . . 482 



Donations to the Library, , . . . , 485 



Monday, Qth April 1857. 



On the Structure of the Pedicellina. By Professor Allman, 486 



On a Case of Lateral Refraction in the Island of Teneriffe. 



By Professor C. PiAzzi Smyth, . . 487 



On Insect Vision and Blind Insects. By Andrew Murray, 



Esq., ...... 487 



On the mode in which Light acts on the Ultimate Nervous 

 Structures of the Eye, and on the relations between Sim- 

 ple and Compound Eyes. By Professor Goodstr, 489 



Donations to the Library, .... 495 



Monday, 20th April 1857. 



On the recently discovered Glacial Phenomena of Arthur's 



Seat and Salisbury Crags. By Robert Chambers, Esq. 49' 



