50 [March, 



office was of but brief duration, is now living in South Australia. 

 Dr. Knaggs was responsible for the Macro-Lepidoptera, and his 

 " Notes on Collecting, Management, &c," of these insects soon became 

 a leading feature of the new Magazine, and without doubt contributed 

 largely to its speedy success. These papers were afterwards collected 

 and amplified into the " Lepidopterist's Guide," by which he is 

 probably best known to the present generation of British Entomo- 

 logists. Of this little book, now in its third edition (revised in 1901), 

 no more need be said here than that it is unquestionably the most 

 useful work in a small compass we have on the practical study of our 

 butterflies and moths, and that in its pages the genial Doctor is seen 

 at his best. 



About this time, in addition to the hard work incidental to a 

 large and successful general practice, he combined with his entomo- 

 logical pursuits the assiduous cultivation of a large kitchen garden. 

 It is more than probable that this strenuous life, and the continuous 

 overwork that it entailed, laid the foundation of the gout and ill- 

 health which compelled him, first to part with his collections, and in 

 1874 to retire from active participation in the affairs of our Magazine. 

 He continued, however, to contribute at intervals to our pages, his 

 last communication (vol. xli, p. 211) being dated August, 1905. For 

 eleven years in succession (1864-1874) the articles in the " Entomo- 

 logist's Annual " dealing with the Macro-Lepidoptera came from his 

 pen, and he also wrote many papers for " Science Gossip," and other 

 periodicals of the same kind. 



Dr. Knaggs, who became a Fellow of the Entomological Society 

 in 1858, served for more than a year on the Council, but resigned in 

 1862. He was also for some years a Fellow of the Linnean Society. 



About 1896 his failing health compelled him to relinquish his 

 practice to his son, Dr. H. Valentine Knaggs (to whom we are greatly 

 indebted for material assistance in the compilation of this Memoir), 

 and to retire permanently to his old favourite hunting-ground at 

 Folkestone, where he had previously acquired a house as an occasional 

 seaside residence, and where, as far as lay in his power, he continued 

 to interest himself in Entomology. It is with the Lepidoptera of the 

 Folkestone district, where so many of his important discoveries in the 

 Order were made, that Dr. Knaggs 's name will be most prominently 

 associated. The "List of the Lepidoptera of Folkestone," compiled 

 by him and published in 1870 by the Natural History Society of that 

 town, and now out of print, made the " Warren " a household word 



