[754] Stur (87), p. 17.

[755] Lindley and Hutton (31), Pl. CXLII B. The original specimen is in the University College Collection, London.

[756] Nathorst (94), p. 56, Pl. XV. figs. 1 and 2.

[757] Seward (88).

[758] Weiss (84), p. 54.

[759] Zeiller (88), p. 329.

[760] Weiss (76), p. 117; (84), p. 55.

[761] Weiss (84), p. 93, Pl. XI. fig. 1.

[762] Vide Weiss (84), Pl. XXV. fig. 2; Pl. XVI a, etc.

[763] Weiss (76), Pl. XVII. fig. 1.

[764] Weiss (84), Pl. I.

[765] Grand’Eury (90), p. 208, and (77), Pl. V.

[766] Lindley and Hutton (31), Pl. CXC.

[767] Stur (87), Pl. V. fig. 1.

[768] Grand’Eury (77), Pl. IV.

[769] Stur (87), Pl. XVII.

[770] Renault (82), Pl. XVII. fig. 2.

[771] Renault and Zeiller (88), Pt. II. p. 434, Pls. LII. and LIII.

[772] Stur (87), p. 37, fig. 17. Vide also Grand’Eury (90), p. 208.

[773] Stur, loc. cit.

[774] Weiss (84), p. 61.

[775] Vide Grand’Eury (77), Pl. V. fig. 5.

[776] Weiss, loc. cit. Pl. XXI. fig. 5.

[777] Stur (87), Pl. XI. fig. 1.

[778] Renault and Zeiller (88), Pt. II. Pl. LI. p. 423.

[779] Lindley and Hutton (31), Pl. CXIV. and Pl. CXC. The original specimens are in the Natural History Museum, Newcastle-on-Tyne.

[780] Ibid. Pl. CXXX. and Feistmantel (75), Pl. I. fig. 8.

[781] Lesquereux (79), Pl. XIII. fig. 14.

[782] Salter (63), figs. 6 and 7. Vide also Carruthers in Woodward, H. (72), p. 168.

[783] Grand’Eury (69); vide also (77) and (90).

[784] Renault and Zeiller (88), Pt. II. Pls. LII. and CIII.

[785] Ibid. Pl. LI.

[786] Sternberg (21), Pl. XII.

[787] Weiss (84), p. 61.

[788] Ettingshausen (55), Pl. I. fig. 4.

[789] Ettingshausen, loc. cit.

[790] Grand’Eury (69), p. 709.

[791] Feistmantel (75), Pl. I. fig. 8.

[792] Williamson (74), Pl. VII. fig. 45.

[793] Weiss (76), Pl. XVII. figs. 1 and 2.

[794] Weiss (84), Pl. XVI a. figs. 10 and 11.

[795] Ibid. Pl. XXV. fig. 2.

[796] Stur (87), Pl. II. etc.

[797] Zeiller (88), p. 363, Pl. LVII. fig. 1.

[798] Steinhauer (18), Pl. VI. fig. 1.

[799] Kidston (93), p. 311, Pl. II.

[800] Kidston (94), p. 248.

[801] Weiss (84), p. 119.

[802] Steinhauer (18), Pl. V. figs. 1 and 2.

[803] Artis (25), Pl. XXIV.

[804] Brongniart (28²), Pls. XV. and XVI.

[805] Lindley and Hutton (31), Pl. LXXIX.

[806] Kidston (93), p. 314; (86), p. 24.

[807] Zeiller (88), p. 333.

[808] Lindley and Hutton (31), Pl. LXXIX.

[809] Weiss (84), Pl. IV. fig. 1.

[810] Renault and Zeiller (88), p. 385.

[811] Grand’Eury (90), p. 214.

[812] Stur (87), p. 160, Pl. IX. fig. 2.

[813] Kidston (94), p. 249.

[814] Grand’Eury (89), p. 1087.

[815] Zeiller (88), p. 355.

[816] Weiss (84), p. 96.

[817] Sterzel (93), p. 66.

[818] Zeiller, loc. cit. p. 353.

[819] Sternberg (25), Pl. XLIX. fig. 5.

[820] Brongniart (28²), p. 128, Pl. XIX.

[821] Germar and Kaulfuss (31), p. 221, Pl. XLV. fig. 1.

[822] Lindley and Hutton (31), Pl. CCXVI.

[823] Grand’Eury (77), p. 293.

[824] Zeiller (80), Pl. CLXXIV. (expl. plates) fig. 3.

[825] Weiss (84), pp. 112, 113, 114.

[826] Zeiller (88), p. 353.

[827] Kidston (94), p. 249.

[828] Grand’Eury (90), p. 216 (expl. plates).

[829] Stur (87), p. 68.

[830] Stur (87), Pl. X.

[831] Artis (25), Pl. II.

[832] Weiss, loc. cit. Pls. V. VI. and X.

[833] Grand’Eury (77), (90).

[834] Vide Stur (75), etc. for remarks on the course of the vascular strands.

[835] For good figures of the leaves vide Stur (75), Rothpletz (80), Ettingshausen (66), Solms (96).

[836] Renault (96), p. 80; (93), Pls. XLII. and XLIII. Since the above was written an account of the internal structure of Archaeocalamites has been published by Solms-Laubach (97); he describes the wood as being of the Arthropitys type.

[837] Renault, loc. cit. Pl. XLII. figs. 6 and 7.

[838] Stur (75), p. 2, Pls. II.–V.

[839] An examination of the specimens in the Museum of the Austrian Geology Survey did not enable me to satisfactorily verify the features of the cone as described by Stur; the impressions are far from clear.

[840] Kidston (83²).

[841] Vide Paterson (41); Lyell (67), vol. I. p. 149 etc.

[842] Volkmann (1720), p. 93, Pl. VII. fig. 2.

[843] Schlotheim (20), p. 402, Pl. XXII. fig. 4.

[844] Sternberg (25).

[845] Brongniart (28²), p. 122, Pl. XXVI. figs. 1 and 2.

[846] Paterson (41), Pl. III.

[847] Göppert (52), Pls. III., V., VI., VIII., XXXVIII.

[848] Ettingshausen (66), Pls. I.–IV.

[849] Feistmantel (73), Pl. XIV. fig. 5.

[850] Zeiller (80), p. 17.

[851] Binney (68), p. 7.

[852] Stur (75), p. 3.

[853] Kidston (86), p. 35.

[854] Schimper and Koechlin-Schlumberger (62), Pl. I. The original specimens of Schimper’s figures are in the Strassburg Museum.

[855] Feistmantel (73), p. 491, Pl. XXIV. figs. 3 and 4.

[856] Vide specimens 20 A, 20 B, 24 in the Williamson Collection.

[857] Stur (75), p. 17.

[858] Rothpletz (80), p. 8.

[859] Weiss (84), p. 56.

[860] Scheuchzer (1723), p. 19, Pl. IV. fig. 1.

[861] Schlotheim (04), Pl. II. fig. 24, p. 57.

[862] Sternberg (25), p. 32.

[863] Brongniart (22), Pl. XIII. fig. 8, p. 234.

[864] Ibid. (28), p. 68.

[865] Dawson (66), p. 153, Pl. XII.

[866] For reference vide an excellent monograph by Coemans and Kickx (64), also Potonié (94).

[867] e.g. Newberry (91).

[868] Renault (73), (76²), (96).

[869] Williamson (74), (78).

[870] Williamson and Scott (94), p. 919.

[871] Specimen 929 in the Williamson Cabinet is a longitudinal section of the French Sphenophyllum, as described by Renault (76²).

[872] Williamson and Scott (94), p. 926.

[873] Williamson (91), p. 18.

[874] Williamson and Scott (94), p. 920.

[875] Williamson (91), p. 12.

[876] Ibid. (74).

[877] Felix (86), Pl. Vi. fig. 2.

[878] For figures vide Renault (82), Pl. XVI. fig. 1, (76²) Pls. VII. and IX.

[879] Williamson (71²).

[880] Weiss (84), p. 200.

[881] Binney (71).

[882] Williamson (91²).

[883] Zeiller (93).

[884] Williamson (92).

[885] Potonié (94), fig. 1.

[886] For a more complete account of this strobilus vide Zeiller (93), and Williamson (91²), etc.

[887] Zeiller (93), p. 37.

[888] Williamson and Scott (94), p. 943.

[889] Scott (97), p. 24.

[890] Solms-Laubach (95⁴).

[891] Ibid. Pl. X. fig. 6.

[892] Kidston (90).

[893] I am indebted to my friend Mr Kidston for an opportunity of examining these specimens.

[894] Vide Renault (77), (96), p. 158. Zeiller (93), p. 34. Williamson and Scott (94), p. 942.

[895] Brongniart (22), p. 234, Pl. II. fig. 8.

[896] Brongniart (28), p. 68.

[897] Bischoff (28), Pl. XIII. fig. 1.

[898] Römer, F. (62), p. 21, Pl. V. fig. 2.

[899] Sterzel (86), pp. 26, 27, etc.

[900] Kidston (93), p. 333.

[901] Zeiller (88), p. 414.

[902] Ibid. p. 411.

[903] Weiss (84), p. 201, Pl. XXI. fig. 12.

[904] Solms-Laubach (95⁴), p. 232.

[905] Geinitz (55), Pl. XX. fig. 7.

[906] Zeiller (88), Pl. LXIV. figs. 3–5, and (93), p. 24, Pl. II. fig. 4.

[907] Stur (75), p. 108.

[908] Stur (87), Pl. XV. and Kidston (90), p. 59, Pl. I.

[909] Zeiller (88), Pl. LXII. figs. 2–4.

[910] Stur (87); Williamson (74); Seward (89), etc.

[911] Renault (82), p. 84, and Newberry (91).

[912] Kidston (90), p. 62.

[913] Stur (75), p. 114, Pl. VII.

[914] Zeiller (93), p. 32.

[915] Mahr (68), Pl. VIII.

[916] Zeiller (80), p. 34, Pl. CLXI. fig. 9.

[917] Coemans and Kickx (64); Zeiller (80), (88); Schimper (69).

[918] Royle (39), p. 431.

[919] For other figures of this plant, vide Feistmantel (81), Pls. XI. A and XII. A.

[920] Zeiller (91).

[921] Vide also Zeiller (92²), p. 75.

[922] Feistmantel (81), p. 69.

[923] Scott (97).

[924] Scott (96²), p. 15.

[925] Dawson (61), p. 10, fig. 7.

[926] Kidston (94), p. 250.

[927] Kidston (94), p. 250.

[928] Sterzel (93), p. 143.

[929] Zeiller (94), p. 172.

[930] De Bary (84), p. 499.

[931] Westermaier and Ambronn (81).

[932] Schwendener (74), p. 124. Haberlandt (96), p. 165.