332 NOTICE OF THE LIFE OF JOSHUA AEDER, ESQ. 



enabled hira to pursue in competence and peace, for the rest of 

 his life, those studies to which he was so much attached, and 

 which he had so well illustrated. 



He was the fast friend and loved associate of many of our best 

 naturalists. Mr. J. G. Jeffreys, of Swansea, and he had known 

 and appreciated each other for five and forty years. The two 

 Goodsirs, Edw. Forbes, Sylvanus Hanley, Drs. Carpenter, Baird, 

 and J. E. Gray, of the British Museum, Dr. Johnstone, of Ber- 

 wick, "William Thompson, Professors Allman and Balfour, of 

 Edinburgh, Dr. Bowerbank, and many others, held him in the 

 highest esteem. 



He corresponded with Loven, Yan Beneden, Sars, Milne Ed- 

 wards, Yerany, and other celebrated naturalists of the Continent. 



His health, which had always been delicate, became during 

 the latter years of his life gradually more and more infirm. His 

 hearing had been imperfect for many years. He was afflicted 

 with the painful consequences of prostatic disease, and within 

 the last four or five years his life had been on several occasions 

 in imminent jeopardy; but owing to his previous careful living, 

 by which he had avoided, as much as possible, all sources of 

 disease, and husbanded the resources of his constitution, to the 

 skilful surgical treatment of Dr. Gibb, and to the devoted and 

 untiring care of his sister, to whom he was tenderly attached, he 

 survived to be cut off by an attack of pleurisy, retaining his 

 mental faculties, and manifesting his love of Natural History, 

 up to within a few hours of his decease. His long and painful 

 trials were borne with singular Christian patience, meekness, and 

 philosophy. 



The portrait of Mr. Alder, which forms the frontispiece to 

 the present volume, has been copied, by the kind permission of 

 Messrs. Maull and Polyblank, from the photograph published 

 by that firm. 



