290 On (he Fossil Plants of the genus Sigillaria. 



• Otopteris Bechei, " Transactions of the Geological Society." 2d S. 

 vol. i. pi. 7, fig. 3. — Filicites Bechei, (Brong. 

 1825). — Zamites Bechei (Brong. 1828). — Otop- 

 teris obtifsa (Lindley and Hutton), *' Fossil 

 Flora/' pi. 128. 

 ■ graphica, (Bean), M.S. 



latifolia, Cycadites latifolius, (Phillips) " Geology of the York- 

 shire Coast,'' plate 10, fig. 1 — {Cycadites grami- 

 neusy and C. lanceolatus of this author are, I 

 strongly suspect, the same species). — Otopteris 

 acuminata (Lindley and Hutton), '* Fossil Flora," 

 pi. 132. — Otopteris hrevifolia (Lindley and Hut- 

 ton), *' Fossil Flora," pi. 208 — Odontopteris un- 

 didata (Sternberg), '' Flore du Monde priraitif," 

 parts 5 and 6, pi. 25, fig. 1, p. 77. 



■ pectiniformis, PolypodioUthes pectiniformis (Sternberg), " Flore 



du Monde primitif," part 3, pi. 33, fig. 1, p. 44. 

 ^—Zamia pectinata, (Brong.), " Prodrome/ p. 23 

 and 94. Filicites ^colopendroideSj (Lindley and 

 Hutton, not Brongniart), " Fossil Flora," pi. 229. 

 — Otopteris lanceolata (Bean), M.S. 



Synonyms of Palseozamia pecten. 



Cycadites pecten (Phillips), Geology of Yorkshire, pi. 7, fig. 22. — ? Cyca- 

 dites pectinoides (?\i\\Yv^^) , pi. 10, fig. ^.—Pterophyllum pecten (Lindley and 

 Hutton), " Fossil Flora," pi. 102. — ? Zamia taxina (Lindley and Hutton), 

 ** Fossil Flora,'' pi. 175. 



Observations on South American and African Guano. By 

 John Davy, M.D., F.R.S. Lond. and £d. Communicated 

 by the Author. 



Modern enterprise and intelligence are well displayed, and 

 in a very characteristic manner, in the importation from such 

 distant regions as the coast of Peru and the south-western 

 coast of Africa, of the excrement of a bird, and in its varied 

 application, founded on scientific principles, to the purposes of 

 agriculture and of horticulture. 



There is something very agreeable in the idea, that our 

 merchants, instead of sending vessels out for cargoes of slaves 

 to the latter coast, keeping up a cruel and barbarous traflSc, 

 are commissioning them to the same sea in quest of a valuable 



* I have not seen specimens of Otopteris Bechei from Axminster. If it possesses 

 finer veins than those which are displayed in the fossil at present hefore me, and 

 procured from CloughtonWyke, on the Yorkshire coast— a character which ap- 

 pears to obtain, judging from the figure in the " Transactions of the Geological So- 

 ciety,''— it is probable that the Yorkshire and the Axminster fossil* may belong 

 to two distinct species. 



