INDEX. 



ACRICOLA. ..................................... - 



Alcyonites, considered as fruits, by Volk- 

 mann, Scheuchzer, and others ............. 



___ of France, described by Guet- 



tard ...................................... - 80 ' 



___ of Switzerland .................. 82, 



___ of Wiltshire ........................ 



compared with sea-figs 

 . - -.. madrepore 



ramified ....................... 



remora like... 



__ - from Switzerland 

 , - from Maestricht 



spines, discovered in 



difficult to distinguish from spon- 



gites 



-- investing shells 

 in pebbles 

 in flint.... 

 bottle-formed 



130, 



funnel-formed 



not conveyed by torrents 



Alcyonium, recent, described 



-- Cydonium ..................... ... 



____ , spines of ............ 



Animal coal in marble ........................... 



- membrane in marble ...... . ........ 16, 



, - , -- in madrepore ............... 



--- in tubipore ..... ........... 



i -- in trochites . ............... 



-- in spongites ............... 



Arachneolithi .... ................................... 



Aristotle knew of the vitality of sponges .... 



Arms of encrinites .. ............ . ..... ..... ...... 



-- of pentacrinites .... ....... . ......... . ..... 



Arrangement of petrifactions, by Linnaeus .. 



-- , by Wallerius. 

 -- - adopted in this 



Page 



156 



79 



104 

 113 



83 



84 



114 

 147 



94 



89 



106 



110 



132 



123 



123 



281 



85 



93 



94 



67 



65 



70 



16 



166 



101 



45 



6 



178 



252 



4 



4 



work 



Page 



Articuli trapczoides of lily encrinites 177 



Asteriae 155, 241 



noticed by Agricola 243 



described by Rosinus 244 



Astroites 45 



Astropodium ... 154 



Baier 42 



Base, pentagonal 155 



of lily encrinite 177 



Bath, fossils of. ' 54, 144 



Beaumont, Mr. his remarks on rock plants.^ 157 



Berkshire, fossil alcyonium of 91 



Bertrand .- 42, 56 



Black-marble, colour owing to animal coal.. 67 



Blankenburg, marble of 33 



Bones, number of, in lily encrinite 181 



Bottle encrinite 231 



like alcyouium 123 



Bourguet 53, 60, 244 



Brain-stone 37 



Briarsean pentacrinite 248 



: vertebral column of.. 249 



vertebral processes... 249 



pelvis of 251 



arms of 252 



specimen of, in Mr. 



Harfbrd's collection, described 253 



Bristol, encrinital remains of 51 



Britain, numerous encrinites of 277 



Bromel 34, 40, 48 



Bruckman's description of spider-stone 45 



Buttner 7, 34, 157 



Cap encrinite .... 191 



Cellipora 71 



Chain coral .. 20 



its curious forms noticed... 20 



Cheshire, fossil coral of ...,,,,....,.,.,, 45 



