CONTENTS. vii 



NUMBER PAGE 



XX. On Skulls of Horses from the Roman Fort at Newstead, near 

 Melrose, with Observations on the Origin of Domestic Horses. 

 By J. C. Ewart, M.D., F.R.S. (With Three Plates and Six 

 Text-figures), . . . . . . .555 



XXL Results of Removal and Transplantation of Ovaries. By F. H. A. 



Marshall, D.Sc., and W. A. Jolly, M.B. (With Two Plates), . 589 



XXII. The Geology of Ardrossan. By J. D. Falconer, M.A., D.Sc., F.G.S. 



(With Two Plates), . . . '. . .601 



XXIII. The Development of the Anterior Mesoderm, and Paired Fins with 



their Nerves, in Lepidosiren and Protopterus. By W. E. Agar, 



B.A. (With a Plate), . . . . . .611 



XXIV. Scottish Tardigrada, collected by the Lake Survey. By James 



Murray. (With Four Plates), . . . . .641 



XXV. Arctic Tardigrada, collected by Wm. S. Bruce. By James Murray. 



(With Two Plates), . . . . . .669 



XXVI. A Monograph on the general Morphology of the Myxinoid Fishes, 

 based on a study of Myxine. Part II. — The Anatomy of the 

 Muscles. By Frank J. Cole, B.Sc. Oxon. (With Four Plates), . 683 



XXVII. On the Fossil Osmundacece. By R. Kidston, F.R.S. L. & E., F.G.S., 



and D. T. Gwynne-Vaughan, M.A. (Plates I.-VL), . .759 



XXVIII. A Contribution to the Craniology of the Natives of Borneo, the 

 Malays, the Natives of Formosa, and the Tibetans. By Principal 

 Sir William Turner, K.C.B., D.C.L., F.R.S. (With Five Plates), 781 



XXIX. Turbellaria of the Scottish National Antarctic Expedition. By 



Dr J. F. Gemmill and Dr R, T. Leiper. (With a Plate), . 819 



XXX. On a New Siphonogorgid Genus Cactogorgia ; with Descriptions of 

 Three New Species. By James J. Simpson, M.A., B.Sc. (With a 

 Plate), ........ 829 



PART IV. (1906-07.) 



XXXI. Encystment of Tardigrada. By James Murray. (With Two 



Plates), . . . . . . . .837 



XXXII. The Boiling and Freezing Points of Concentrated Aqueous Solutions, 

 and the Question of the Hydration of the Solute. Part 1. By 

 Rev. S. M. Johnston, B.A., D.Sc, F.R.S.E., . . .855 



