CONTENTS 
PAGE 
1. Andrews’ Measurements of the Compression of Carbon Dioxide and of Mixtures 
of Carbon Dioxide and Nitrogen. Edited by Professor C. G. Knott. (Supp. 
Note, p. 290.) Issued separately December 1, 1909, .... 1 
2. Seismic Radiations. — Part II. By Professor C. G. Knott. Issued separately 
December 23, 1909, ........ 23 
3. A New Experimental Method of investigating Certain Systems of Stress. By 
G. H. Gulliver, B.Sc., A.M.I.Mech.E., Lecturer in Engineering in the Univer- 
sity of Edinburgh. (With Six Plates.) Issued separately December 23, 1909, 38 
4. On the Illuminating Power of Groups of Pin-hole Burners. By R. G. Harris, 
Physical Laboratory, Edinburgh University. Communicated by Professor 
MacGregor. Issued separately December 23, 1909, . . . .46 
5. A New Hydrate of Orthophosphoric Acid. By Alexander Smith and Alan 
W. C. Menzies. (Abstract.) Issued separately December 23, 1909, . . 63 
6. A Further Contribution to a Comparative Study of the dominant Phanerogamic 
and Higher Cryptogamic Flora of Aquatic Habit in Scottish Lakes. By 
George West. (With Sixty -two Plates.) Issued separately January 12, 1910, 65 
7. The Composition and Character of Oceanic Red Clay. By W. A. Caspari, B.Sc., 
Ph.D., F.I.C., Assistant at the Challenger Office. Communicated by Sir John 
Murray, K.C.B., F.R.S. Issued separately February 1, 1910, . . 183 
8. The Short Muscles of the Hand of the Agile Gibbon ( Hylobates agilis ), with 
Comments on the Morphological Position and Function of the Short Muscles 
of the Hand of Man. By Duncan C. L. Fitz williams, M.D., Ch.M., 
F.R.C.S., Surgeon-in-Charge of Out-Patients, St Mary’s Hospital, London. 
Communicated by Sir William Turner. (With Two Plates.) Issued separately 
February 2, 1910, ....... 202 
9. Observations on some Spark-Gap Phenomena. By John M‘Whan, M.A., George 
A. Clark Scholar of the University of Glasgow. Communicated by Professor 
A. Gray, F.R.S. Issued separately February 2, 1910, .... 219 
10. The Structure of the Reproductive Organs in the Free-Martin, with a Theory of 
the Significance of the Abnormality. By D. Berry Hart, M.D., etc., Edin- 
burgh. (With Two Plates.) Issued separately February 11, 1910, . . 230 
11. On Waves in a Dispersive Medium resulting from a Limited Initial Disturbance. 
By George Green, M.A., B.Sc., Assistant to the Professor of Natural Philosophy 
in the University of Glasgow. Communicated by Professor A. Gray, F.R.S. 
Issued separately February 18, 1910, . . . . . 242 
