18 INTRODUCTION. 



Thomas, Oldfield. — Suggestions for the more definite use of the word "type" 

 and its compounds as denoting specimens of a greater or less degree of authen- 

 ticity. Proc. Zool. Soc. for 1893, pp. 241-242. 



. — Types in natural history- and nt)menclature of rodents. Science, 



vSeptember 24, 1897, pp. 485-487. 



Underwood, Lucien M. — The Royal Botanic (lardens at Kew. vScience, July 21, 

 1899, pp. 65-76. 



WaIvSingh.am (Lord) and Durr.ant, John H.arTlev. — Rules for regulating 

 nomenclature, with a view to secure a strict application of the law of priority in 

 entomological work [also known as the Merton Rules]. London, 1896. 



Woods, Henrv. — Catalogue of the type fossils in the Woodwardian Museum, 

 Cambridge. With a preface by T. McKenny Hughes. Cambridge Press, 1891. 



