LINNEAN SOCIETY OF LONDON. XXXVU 



which was published in the sixth volume of our ' Transactions.' 

 At the Ijeginuing of 1801 he resided with his father at Waltham- 

 stow, but in the following year his father purchased the Cambrian 

 Pottery at Swansea, at the head of which extensive establishment 

 he was thenceforward placed, although he did not absolutely 

 settle there until the year 1803. His principal botanical work, 

 * The Natm-al History of British Confervae,' was commenced in 

 1802, when he was only 24 years of age ; and ' The Botanist's 

 Guide through England and Wales,' in two vols. 8vo, the joint 

 production of himself and Mr. Dawson Turner, was published in 

 1805. In the establishment which he conducted he found means 

 of turning to good account his studies as a naturalist, and the 

 porcelain of the Cambrian Pottery speedily acquired great ce- 

 lebrity for the faithful and exquisite paintings of birds, butterflies, 

 shells and flowers with which it was ornamented, and which, 

 together with the beauty of the material itself, render the 

 "Swansea China" an article of great value in the eyes of con- 

 noisseurs. It was brought to its highest state of perfection about 

 the year 1814, but was soon after laid aside, and earthenware 

 again became, as it now is, the sole product of the Cambrian 

 Pottery. 



In 1809 Mr. Dillwyn completed his work on ' British Con- 

 fervae,' which formed, at the period of its publication, a most 

 valuable contribution to a very neglected branch of the natural 

 history of the British Islands. Shortly afterwards he married the 

 daughter of John Llewelyn, Esq., of Penllergare, in the county 

 of Glamorgan, on whose death, his eldest son, John DUlwyn 

 Llewelyn, became heir to the extensive estates of his maternal 

 grandfather, and for some years afterwards, as his son's guardian, 

 Mr. Dillwyn resided at Penllergare. Previous, however, to this 

 removal, he published, in 1817, 'A descriptive Catalogue of 

 Recent Shells, arranged according to the Linnean Method,' in 

 two vols. 8vo, a work of great labour and research, which he 

 dedicated to Sir Joseph Banks, with whom he had long been on 

 terms of friendly intimacy, and to the free use of whose extensive 

 Hbrary he declares himself in the preface indebted for the means 

 of producing it in so complete a form. This work was followed, 

 in 1823, by ' An Index to the Historia Conchyliorum of Lister, 

 with occasional Remarks,' printed in foUo, at the Clarendon 

 Press, at the expense of the University of Oxford, which, on this 

 occasion, offered to Mr. DiUwyn the honorary degree of D.C.L., 

 an honour which he, however, declined. In 1823 also he com-. 



