i8o An Exhibit of Palaeozoic Seeds. 
46. The unique set of seed-impressions attached to recognisable 
portions of the leaf of Nenropteris heterophylla, from the Middle 
Coal Meas., South Staffordshire Coalfield, Coseley, Nr. Dudley, and 
including all the specimens figured by Kidston in Phil. Trans. B., 
Vol. 197, pi. I. 
Trigonocarpus. 
Seeds suspected of having been borne by a Medullosa. 
47. T. Parkinsoni, Bgt. A series of impressions of specimens 
showing the stone enclosed in the fleshy layer of the testa; others 
showing cast of interior of seed and of the long micropyle. 
[K 590 1579, 1062, 1063, 1064.] 
48. Phot, of group of casts from a specimen in the York Museum. 
49. Impression of several seeds showing showing association with 
pinnules of Aletliopteris loncliitica. 
50. T. olivaeforme, Will., trans. and long, sectns. of petrified speci¬ 
mens [S 325, 940], with a cast of interior of T. Parkinsoni for 
comparison. 
(IV.)— Lycopodineae. 
Lcpidocavpon Lomaxi, Scott, was fully illustrated by a selection 
of sections and drawings from the Scott Collection, including:— 
51. Tangential sections of seeds [S 621, 861.] 
52. Seed showing- prothallus [S 1073.] 
53. Cone in tangential section, seeds without integument [S 1848.] 
54. Cone in transverse section [S 1866.] 
55. Section of a very large seed belonging to an undescribed 
species of Lepidocarpon [S.j 
56. Lepidostrobns Brownii, Schimper, trans. and longitudinal 
sections [Brit. Mus. Coll.] 
57. Models in wax by Mr. Smedley of a seed on its bract as well as 
of an ordinary Lepidostrobns. 
Sections and impressions of the vegetative organs of Lepido- 
dendron were associated with these seed-like structures, including :— 
58. Lepidodendron (Lepiduphloios) Harcourtii , Witharn, trans. 
sectn. of stem [Brit. Mus. Coll.J 
59. The same, branching specimen, with several seeds of Lepido¬ 
carpon Lomaxi associated [U.C.L.] 
60. Habit impressions of stems and leafy branches of various 
species of Lepidodendron. 
61. Restoration of Lepidodendron, after Grand ’Eury. 
62. Miadesinia inembranacea, Bertrand, was on account of its small¬ 
ness illustrated by photographs (from original specimens in the 
Royal Holloway College and University College Collections), diagrams, 
and more especially by an admirable series of models in plasticine. 
F.W.O. 
R. MADLEY, PRINTER, WHITFIELD STREET, LONDON, W. 
