22 THE ENTOMOLOGIST. 



RECENT LITERATURE. 



Annals of Tropical Medicine and Parasitology. Series T. M., vol. vi. 

 No. 3, b. Liverpool, October, 1912. 

 This periodical is well up to its usual form. There is a note on 

 crude carbolic acid as a larvicide. The chief insects referred to in 

 the various papers are Glossina palpalis and G. morsitans ; certain 

 fleas ; and some lice, human and other. Members of the medical 

 profession should find this part specially interesting. 



W. J. L. 



The Large Larch Saw fly {Nematus erichsonii). By C. Gordon 

 Hewitt, D.Sc. (Entomological Bulletin No. 5, Department of 

 Agriculture, Division of Entomology.) Ottawa, 1912. 



This is an exhaustive account (pp. 42), fully illustrated, of an 

 insect-pest, British and Canadian, and will be found as useful to those 

 who have to do with the larch in England as it will be to those who 

 are concerned with it in Canada. It is, in fact, treated to a great 

 extent as a British insect. W T L 



Memoirs of the Department of Agriculture in India. Vol. iv. 

 Nos. 1 and 2 (May and August, 1912). 



In No. 1 there is an exhaustive article on "Eri Silk," by H. 

 Maxwell Lefroy, M.A., and C. C. Ghosh, B.A. 



Eri silk, the product of the larva of Attacus ricini, Boisd., cannot 

 be reeled off from the cocoon in one thread, as in mulberry silk. In 

 the eri cocoon the silk is spun in layers, and so arranged that the 

 emerging moth can push its way through one end of the cocoon 

 without doing any damage to the fibres ; there is therefore no neces- 

 sity to kill the imago. 



No 2 contains a paper by Dr. J. L. Hancock on Tetriginse (Acri- 

 diinae) in the Agricultural Research Institute, Pusa, Bihar, with de- 

 scriptions of new species. 



OBITUARY. 

 Thomas Boyd, F.E.S. 



On February 5th last there passed away at his residence, Wood- 

 vale Lodge, South Norwood, the oldest Fellow of the Entomological 

 Society save one — Lord Avebury. Thomas Boyd was born on 

 August 8th, 1829 (the second son of William Clarke Boyd), in 

 Ely Place, Holborn ; his parents died when he was quite young, 

 and eventually he went to live with an aunt at 17, Clapton Square, 

 N.E., then on the edge of the country. There he developed a taste 

 for natural history, and especially for entomology. As a young man 

 he became an active lepidopterist, and he was elected a life member 

 of the Entomological Society in 1852. During the next few years he 



