XXI 



The Entomological Society, 11, Chandos Street, Cavendish 

 Square, W. 



" The English Mechanic," 332, Strand, W.C. 



A. P. Wire, Esq., Librarian, Essex Field Club, Buckhurst 

 Kill, Essex. 



The Librarian, Geologists' Association, University College, 

 Gower Street, W.C. 



James J. King, Esq., Librarian, Natural History Society of 

 Glasgow, 207, Bath Street, Glasgow. 



Daniel Hill, Esq., Herts Natural History Society, Herga, Wat- 

 ford, Herts. 



Imperial Leopold-Caroline Academy, Halle-on-the-Saale, Ger- 

 many. 



Hon. Secretary, Microscopical Society of Liverpool, Royal 

 Institution, Colquitt Street, Liverpool. 



The Linnean Society, Burlington House, Piccadilly, W. 



The Librarian, London Institution, Finsbury Circus, E.C. 



F. Nicholson, Esq., Librarian, Literary and Philosophical 

 Society of Manchester, 36, George Street, Manchester. 



E. W. Badger, Esq., Editor, " Midland Naturalist," Midland 

 Counties Herald Office, Union Street, Birmingham. 



W. H. Hughan, Esq., Secretary, Historical and Scientific 

 Society of Manitoba, Winnipeg, Canada. 



The Editor, " The Microscope," Washington, D.C., U.S.A. 



The Royal Society of New South Wales, care of Messrs. 

 Triibner & Co., Paternoster House, Charing Cross Road, W.C. 



Rev. J. L. Zabuskie, New York Microscopical Society, Waverley 

 Avenue, Flatbush, L.L., New York, U.S.A. 



The Patent Office Library, 25, Southampton Buildings, 

 Chancery Lane, W.C. 



Alfred Allen, Esq., Hon. Secretary, Postal Microscopical 

 Society, 1, Cambridge Place, Bath. 



Quekett Microscopical Club, 20, Hanover Square, W. 



The Royal Society, Burlington House, Piccadilly, W. 



The Royal Microscopical Society, 20, Hanover Square, W. 



