Index of Papers published in the “ Transactions 11 
during Session 1919-20. 
(. Arranged under the Authors’ Names.) 
Baldwin (R. ) and Carey (R. M.). See Doodson 
(A. T.). 
Carey (R. M.). See Doodson (A. T.) and 
Baldwin (R.). 
Doodson (A. T.), Carey (R. M.),and Baldwin (R.). 
Theoretical Determination of the Longitudinal 
Seiches of Lake Geneva, vol. lii, No. 25, 
1920, pp. 629-642. 
Gordon (W. T.). Scottish National Antarctic 
Expedition, 1902-04 : Cambrian Organic 
Remains from a Dredging in the Weddell 
Sea, vol. lii, No. 27, 1920, pp. 681-714. 
Haseman (Miss M. G.). Amphicheiral Knots, 
vol. lii, No. 23, 1919, pp. 597-602. 
Kidston (R.)and Lang (W. H.). On Old Red 
Sandstone Plants showing Structure, from 
the Rhynie Chert Bed, Aberdeenshire. Part 
II : Additional Notes on Rhynia Gwynne- 
Vaughani, Kidston and Lang ; with Descrip- 
tions of Rhynia major , n.sp., and Hornea 
Lignieri , n.g., n.sp., vol. lii, No. 24, 1920, 
pp. 603-627. 
On Old Red Sandstone Plants 
showing Structure, from the Rhynie Chert 
Bed, Aberdeenshire. Part III : Asteroxylon 
Mackiei , Kidston and Lang, vol. lii, No. 26, 
1920, pp. 643-680. 
Lang (W. H.). See Kidston (R. ). 
Thompson (J. M‘L. ). New Stelar Facts and 
their Bearing on Stelar Theories for the 
Ferns, vol. lii, No. 28, 1920, pp. 715-735. 
PRINTED IN GREAT BRITAIN B-Y NEILL AND CO., LTD., EDINBURGH. 
