27 



science derived, with mineralogy, from the well directed labours of 

 those, who strove to place the different productions of nature under 

 appropriate classes. On this account, muqri is undoubtedly due to 

 the scientific exertions of Linnaeus and of Wallerius : both of these 

 writers, in their different systems of arrangement, having taken a 

 very comprehensive view of the objects of our enquiry. The oryc- 

 tology of D'Argenville is replete with information, which must be 

 highly acceptable to the admirer of lithology. Gesner's (Jo.) dis- 

 sertation De Petrificatis, published in 1758, is highly valuable, as a 

 faithful and neat compendium of the science. The Trait 6 des Petri- 

 factions of Bourguet is a work which is also more useful ; from its 

 yielding the illustration of faithful plates, and the advantage of 

 a convenient arrangement. But the work, which comprises the 

 most information, and indeed, from which every lover of the sci- 

 ence must derive the greatest degree of satisfaction and pleasure, 

 is that of the celebrated Mr. Knorr, published in Germany, en- 

 titled, Recueil des Monumens des catastrophes qui la Globe de la 

 Terre a essuiees. This magnificent work, contained in three folio 

 volumes, and adorned with elegant coloured representations of 

 different specimens, was began by the learned G. W. Knorr, and 

 at his death was continued with equal care and zeai by Mr. 

 Walch. 



The only works, entirely devoted to these subjects, which have 

 appeared in England since the republication of Lhwyd's work, are, 

 Descriptions and Plates of Petrifactions found near Bath, by John 

 Walcott ; and Gustavus Brander's Fossilia Hautoniensia, in Musceo 

 Britannico deposita ; the scientific descriptions of which were written 

 by Dr. Solander. Through the whole series of the Philosophical 

 Transactions of the Royal Society of London, is dispersed, a consider* 

 able portion of information respecting the remains of the ancient 

 world, in communications from Sir Hans Sloane, the Hon. Daines 

 Barrington, Dr. Stukely, Dr. Molyneux, Dr. Mortimer,Dr. C 



