Ill 
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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 
Monday , 2 d 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 , 16$ 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 , 6$ 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 Goodsir, 489 
Donations to the Library, .... 495 
Monday , 20$ April 1857. 
On the recently discovered Glacial Phenomena of Arthur’s 
Seat and Salisbury Crags. By Robert Chambers, Esq. 497 
