NO. 
XXI. The Independence of Peripheral Sensory Neurons in view of 
the Results of Experimental Section of the Optic Nerve in 
the Rabbit. By Janie Hamilton MTlroy, M.A., B.Sc., 
M.B., Ch.B., Barbour Research Scholar in Physiology. 
(From the Physiological Laboratory, University of 
Glasgow.) ( Communicated by Professor D. Noel PaTon.) 
{Abstract), ....... 349 
(. Issued separately April 12, 1911.) 
XXII. The Sex and Age Incidence of Mortality from Pulmonary 
Tuberculosis in Scotland and in its Groups of Registration 
Districts since 1861. By C. Hunter Stewart, M.B., D.Sc., 
Professor of Public Health, University of Edinburgh. 
(With Sixteen Tables, nine of which in text, and Eight 
Plates), ....... 352 
{Issued separately April 15, 1911.) 
- XXIII. An Investigation into the effects of Errors in Surveying. 
By Henry Briggs, B.Sc., A.R.S.M. {Communicated by 
Principal A. P. Laurie.) {Abstract), . . .374 
XXIY. On the Temperature Coefficient of Concentration Cells, in 
which the same salt is dissolved in two different solvents. 
By A. P. Laurie, M.A., D.Sc., . . . .375 
{Issued separately April 25, 1911.) 
XXV. The Topography of the Cerebral Cortex of the Guinea-pig. 
By Willi amina Abel, M.D., McCunn Scholar. (From 
the Physiology Department, Glasgow University.) {Com- 
municated by Professor D. Noel Paton), . . .397 
{Issued separately May 12, 1911.) 
XXVI. On the Accuracy attainable with a Modified Form of 
Atwood’s Machine. By John P. Dalton, M.A., B.Sc., 
Carnegie Research Fellow. {Communicated by Professor 
W. Peddie), . . . . . . .416 
CONTENTS. 
PAGE 
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No. XXIII. {Abstract.) 
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