Vor.. 54 : Part I. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 



LITERARY & PHILOSOPHICAL 



SOCIETY, 1909-1910. 



CONTENTS. 



Memoirs : 



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

 on the Mutability of the Solar System. By Henry Wilde, 

 D.Sc, D.C.L., F.R.S. With Plate. pp. I— 11. 



{Issued separately, October 2Jt/t, iQOQ). 



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



Lionel E. Adams, B.A. With j Text-Jigs, and Plate. - - pp. i — 9. 

 (Issiied sepatately, Novemhci' 13th, iQog). 



III. A Note on the Staminal Mechanism of Passiflora CaeruUa, L. 



By T. G. B. Osborn, B.Sc. With s Text-figs. - • - pp. 1—7. 



(Issued separately , December yth, iqoq). 



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



Plesiosaurs. By D. M. S. Watson, B.Sc. With 6 Text-Jigs. 



and Plate. pp. i — 28, 



{Issued separately, December 22nd, igog). 



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



F.R.S. p. I. 



{Issued separately, December 24th, 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 24th, igog). 



Proceedings pp. i. — x. 



MANCHESTER: 

 36, GEORGE STREET. 



price ^wo SbilKuGs anJ> Sijpence. 



