《organic remains of a former world VOL.2》

LETTER Ⅰ.1

MODE in which the Work is intended to be performed...Reasons for employing the Epistolary Form1

LETTER Ⅱ.4

Arrangement of Linn?us...Of Wallerius...That adopted in the present Work...Zoophytes claim priority of Examination...Corals4

LETTER Ⅲ.8

Remarks on recent Corals...Experiments on, by Mr. Hatchett8

LETTER Ⅳ.11

Classification...Nomenclature ...Tubiporite ... A pp roachi ng to Tubi pora Musica...Tubi pora Strues...Imbedded in Marble, Mr. Hatchett's Experiments...Animal Membrane detected in the Marble formed by this Coral11

LETTER Ⅴ.18

Ramified Tubipore...Silicified Tubipore in Limestone...Marble formed by this Tubipore...Chain Coral...Stellated Tubipore,c.18

LETTER Ⅵ.23

Madrepore...Madreporean Polype...Fossil Madrepore...Difficulty in ascertaining the Species...Turbinated Madrepore...Varieties of...Remarks on its Formation23

LETTER Ⅶ.30

Observations on turbinated Madrepores continued...Porpital, or Shirt Button, Madreporite...Synoniina...Madrepores not found in a mineralized State30

LETTER Ⅷ.37

Other Madrepores, not perhaps known in a fossil state...Madrepora Favosa...Madrepora Re-tepora...M. Ananas, c...M. Foliosa, c...Astroites—Lithostrotion of Lhwydd...Spider-stone of Bruckman37

LETTER Ⅸ.47

Madrepora Stellata,c....M. Truncata...M. Stellaris...Madreporites from Steeple Ashton Madrepora Organum, ?Flexuesa...M. Fascicularis...M. Pectinata...M.Arachnoides...M.Vermicularis...Coralloidea Columnaria Pentaedra of Woodward...Madreporite from Ingleborough...Junci Lapidei...Kilkenny Marble47

LETTER Ⅹ.68

Mycetite of Woodward..,Porpital and turbinated compound Madreporites...Ramose Madrepo-rites—Milleporites...Celleporites, c....Fossil Corals of unknown genera ?68

LETTER Ⅺ79

Fossil Alcyonia...Considered as Fruits, by Volkmann and Scheuchzer...Fossil Alcyonia of France...Difficulties in distinguishing the Fossil Sponges from Fossil Alcyonia...Various Specimens described ?79

LETTER Ⅻ.106

Fossil Alcyoniurn described, by Abbe Fortis...Specimens of various inedited Fossil Zoophytes described106

LETTER ⅩⅢ.17

Alcyonites.agreeing in their Forms;but differing in their Structure...Specimens of; from France,Italy, Switzerland, and England...Wiltshire Alcyonite ?117

LETTER ⅩⅣ.128

Alcyonites inclosed in Flints...Found in Wiltshire, Oxfordshire, Buckinghamshire, and Hert-fordshire...Other Specimens noticed ?128

LETTER ⅩⅤ.134

Maestricht Fossils...Ambiguous appearances—Compared with other Fossils, from Switzerland,England, and America134

LETTER ⅩⅥ152

Encrinites and Pentacrinites...Trochites...History of...Various Species described...Original animal Membrane demonstrated...Screwstone ?152

LETTER ⅩⅦ.173

Lily Encrinite...Trunk...Pelvis...Saperior extremity...Number of Bones in the superior Part of the Animal...Inferior extremity ?173

LETTER ⅩⅧ.186

Reflections on the Nature and Structure of this Animal—The Animal described in various states ?186

LETTER ⅩⅨ.191

Cap Encrinite of Derbyshire, and perhaps of Yorkshire—Soperior Termination...Supposed in-ferior Termination...Turban Encrinite of. Shropshire...Pelvis described...Inferior extremity...Peculiarity of its Trunk...Same Column from Gothland ?191

LETTER ⅩⅩ.208

Pear Encrinite of Bradford...Superior extremity, inferior extremity...Found also at Pfeffingen208

LETTER ⅩⅪ.217

Nave Encrinite, discovered in Yorkshire, by Mr. Martin Lister...In Gloucestershire, by Mr.John Beaumont...Supposed to be the Radix of an Encrinus...Shewn to be the Pelvis, or Skeleton, of the Body part...Similar Fossils described—Others from the Isle of Gothland Encrinite in Mr. Donovan's Collection217

LETTER ⅩⅫ.225

The Tortoise Encrinite...The Straight Encrinite...The Bottle Encrinite...The Clove. Encrinite ...Kentucky Asterial Fossil...Uncommon Encrinal Vertebr?...Fossil, apparently an oval Encrinite225

LETTER ⅩⅩⅢ.241

Pentacrinites...Different Vertebr? noticed241

LETTER ⅩⅩⅣ.248

Briar?an Pentacrinite...Vertebral Column...Vertebral Processes...Two-fold Office...Bones form-ing the Pelvis...Superior Extremities...Anastomosing Pentacrinite248

LETTER ⅩⅩⅤ.257

Remains of the Gloucestershire, Somersetshire, and Yorkshire Pentacrinites257

LETTER ⅩⅩⅥ.263

Opinions and Discoveries respecting the living Analogues of the Pentacrinites263

LETTER ⅩⅩⅦ.272

Attempt to ascertain the Number of Species of these Animals272

LETTER ⅩⅩⅧ.278

General Remarks on the Fossils already described278

LETTER ⅩⅩⅨ.283

Observations on the Process of Petrifaction283