27 
those, who strove to place the different productions of nature under 
appropriate classes. On this account, much is undoubtedly due to 
the scientific exertions of Linnaeus and of Wollerius : both of these 
writers in their different systems of arrangement, having taken a 
very comprehensive view of the objects of our inquiry. 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 17^8, is highly valuable, as a 
faithful and neat compendium of the science. The TraiU des 
Petrifactions 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 pleasme, 
is that of the celebrated Mr. Knorr, published in Germany, 
entitled Recueil des Monumens des catastrophes Cjui 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 zeal by Mr. 
Walch. 
The only works, entirely devoted to these subjects, which have 
appeared in England since the republication of Lhwydd’s work, are. 
Descriptions and Plates of Petrifactions found near Bath, by John 
Walcott; and Gustavus Brander’s Fossilia Hautoniensia, in Musceo 
Pritannico 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 con- 
siderable 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. Camper, Dr. Hunter, Mr. Ray, Mr. Joshua Platt, Mr. Da Costa, 
