CONTENTS. 



MEMOIRS. 



I. On a New Binary Progression of the Planetary Distances, 

 and on the MutabiUty of the Solar System. By Menry 

 WiLDK, D.Sc.,D.C.L., F.R.S. With Plate. ... pp. i— ii 



{Issued separately, October 2^t/t, i()og). 



II. Some Notes on the Breeding Habits of the Common Mole. 

 By Lionel E. Adams, B.A. IVitk j Text-figs, and 

 Plate ... ... ... ... ... ... ... pp. I — 9 



{Issued separately, NiK'eiiil'er ijth, igog). 



III. A Note on the Slaminal Mechanism of Passtfiora Caeridea, 



L. By T. G. B. OsBORN, B.Sc. With 3 Text-figs. pp. 1—7 

 (Issued separately, December yt/i, igog). 



IV. A Preliminary Note on two New Genera of Upper Liassic 



Plesiosaurs. By D. M. S. Watson, B.Sc. With 6 Te.vt- 



figs. and Plate ... ... ... ... ... ... pp. i — 28 



(Issued separately, December jJiid, igog). 



\„ 

 V. The Action of the a Rays on Glass. By Professor E. 



Rutherford, F.R.S. p. 1 



(Issued separately, December .24tk, igog). 



VI. Production of Helium by Radium. By Professor E. 



Rutherford, F.R.S., and Dr. B. B. Boltwood. pp. 1—2 



(Issued separately, December 34.th, igog). 



VII. The Development of the Atomic Theory: (i) Berthollet's 

 Doctrine of Variable Proportions. By Andrew Norman 

 Meldrum, D.Sc pp. 1—16 



(Issued separately, February ist, igio). 



VIII. Note on Radio-Active Recoil. By Sidney Russ, D.Sc. 



With s Text-figs pp. i— 12 



(Issued separately, February Jst, igio). 



