Notices of Memoirs — Additions to Fossil Botany, 1^70. 219 



On the Graphite of the Laurentian Rocks of Canada. Quart. 



Joum. Geol. Soc. vol. xxvi. pp. 112-117. 

 The author estimates that the quantity of carbon in the Laurentian is equal to 

 that in similar areas of the Carboniferous systems. This carbon has been obtamed 

 from the deoxidation of carbonic acid by plants, and consequently indicates the 

 existence of plants side by side with the Eozoon. 



M'Nab, W. R.— On the Structure of a Lignite from the Old Red Sandstone. 

 Trans. Bot. Soc. Edin. vol. x. p. 312. ... 



The author proposes to name the wood which he describes PalcEOpitys Milleru. 

 It was found by Hugh Miller at Cromarty. 



Von Mueller, F., and R. Brough Smyth. Observations on some Vegetable 

 Fossils from Victoria. Geol. Mag., Vol. VII. p. 390. 

 The specimens were fruits from surface deposits, and were obtained from one of 

 the deep leads at Haddon. One is a coniferous fruit allied to Solenostrobus, of 

 Bowerbank, to which the name of Spondylostrobtis Smythii is given. The others 

 are not named, but suggestions are given as to their affinities, and these indicate, 

 according to Von Mueller, a flora analogous to that of the existing forest-belt of 

 Eastern Australia. 



Williamson, W. C. — Contributions towards the History of Zamia gigas, Lindl. 

 and Hutt. Trans. Linn. Soc, vol. xxvi. pp. 663-674, pi, 52, 53. 

 The author gives an account of the different structures which he believes to 

 belong to this plant, describing m detail the stem, leaves, and male and female 

 flowers. 



Synopsis of the Genera and Species described in the preceding Papers. 

 FiLICES. 



Chelepteris, Quart. Journ. Geol. Soc. vol. xxvi. p. 352. 



Osmundites Dowkeri, Carr. Quart. Journ. Geol. Soc. vol. xxvi. p. 349. Lower 

 Eocene. Heme Bay. 

 Cycade^. 



Bennettites Gibsonianus, Carr. Trans. Linn. Soc. vol. xxvi. p. 681, pi. Iviii-lx. 



Lower Greensand. Luccombe Chine, Isle of Wight. 

 B. maximus, Carr. 1. c. Wealden. Isle of Wight. 



B. Peachianus, Carr. 1. c. ; pi. kii. Middle Oolite. Helmsdale, Sutherland- 

 shire. 

 B. Portlandicus, Carn 1. c. ; pi. Ixi. Lower Purbeck. Isle of Portland, 



Dorsetshire. 

 B. Saxbyanus, Carr. 1. c. ; pi. Ivii. Wealden. Isle of Wight. 

 Bucklandia anomala, Presl, Trans. Linn. Soc. vol. xxvi. p. 679 ; pi. liv. fig. 



1-3. Wealden. Cuckfield, Sussex. 

 B. Mantellii, Carr. 1. c. ; pi. liv. fig. 4. Wealden. Cuckfield, Sussex. 

 B. Milleriana, Carr. I.e. ; pi. Iv. fig. i. Coral Rag. Brora, Sutherlandshire. 



B. squamosa, Brongn. 1. c. Stonesfield Slate. Stonesfield. 



Crossozamia Buvigttieri, Pomel, 1. c. p. 680. Jtirassic. St. Michel, France. 



C. Moreaui, Pomel, 1. c. Jurassic. St. Michel, France. 



Mantellia inclusa, Carr. 1. c. p. 681 ; pi. Ixiii. fig. 2 and 3. Lower Greensand. 



Potton, Cambridgeshire. 

 M. intermedia, Carr. 1. c. ; pi. Ixiii. fig. 4 and 5. Lower Purbeck. Isle of 



Portland, Dorsetshire. 

 M. microphylla, Brongn. 1. c. ; pi. Ixiii. fig. 6. Lower Purbeck. Isle of Port- 

 land, Dorsetshire. 

 M. nidiformis, Brongn. 1. c. ; pi. Ixiii. fig. i. Lower Purbeck. Isle of Portland, 



Dorsetshire, 

 Rautneria Reichenbachiana, Gopp. 1. c. p. 682. Formation unknown. Wieliczka, 



Gallicia. 

 R. Schulziana, Gopp. 1. c. Formation unknown. Gleiwitz, Silesia. 

 Williamsonia gigas, Carr. 1. c. p. 680 ; pi. lii. and liii. Info'ior Oolite. Scar- 

 borough, Yorkshire. 

 W. hastnla, Carr. 1. c. Inferior Oolite. Saltwick, Yorkshire. 

 W. pecten, Carr. 1. c. Inferior Oolite. Gristhorpe, Yorkshire. 

 Yatesia crassa, Carr. I.e. p. 680 ; pi. Iv. fig. 7. Coral Rag. Brora, Sutherland- 

 shire. 



