CONTENTS. 
VOL. II. 
LETTER 1. 
Mode in which the Work is intended to be performed.-Reasons for employing the Epistolary 
Form 
LETTER 11. 
Arrangement of Linn««s...Of Wallerius...That adopted in the present Work...Zoophytes claim 
priority of Examination. ..Corals * .••••• 
LETTER III. 
Remarks on recent Corals... Experiments on, by Mr. Hatchett 
Page 
1 
4 
8 
LETTER IV. 
Classification... Nomenclature.. .Tubiporite...Approaching to Tubipora Musica...Tubipora Strues 
...Imbedded in Marble, Mr. Hatchett’s Experiments...Animal Membrane detected in the 
Marble formed by this Coral * 
LETTER V. 
Ramified Tubipore...Silicified Tubipore in Limestone. ..Marble formed by this Tubipore... Chain 
Coral. .. Stellated Tubipore, 
LETTER VI. 
Madrepore... Madreporian Polype. ..Fossil Madrepore. ..Difficulty in ascertaining the Species 
...Turbinated Madrepore. ..Varieties of.. .Remarks on its Formation 23 
LETTER VII. 
Observations on turbinated Madrepores continued. ..Porpital, or Shirt Button, Madreporite 
...Synonyma... Madrepores not found in a mineralized State 30 
LETTER VIII. 
Other Madrepores, not perhaps known in a fossil state... Madrepora Favosa... Madrepora Re- 
tepora..'.M. Antaas, &C...M. Foliosa, &c...Astroites....Lithostrotion of Lhwydd.... Spider- 
stone of Bruckman * 
37 
