546 Henry Woodtvard — Address to the Geologists' Association. 



moter, and Searles Wood, Owen, Bell, and rrederick Edwards, its 

 earliest pi-omoters and contributors. Following these in chronological 

 order come Eupert Jones, King, Milne-Edwards, and Jules Haime, 

 Morris and Lycett, Davidson, Darwin, Forbes, Daniel Sharpe, Dr. 

 Wright, Busk, Salter, Phillips,. Boyd-Dawkins and Sandford, Parker 

 and Brady, E. W. Binnej^ Woodward, Lankester. Of this long list 

 of palaeontologists, three names stand out in connexion with, this 

 Society pre-eminent for hard untiring energy extending over more 

 than a quarter of a century — men who are, happily for us, still 

 immhered among our scientific workers. They are Thomas Davidson, 

 Searles V. Wood (the venerable Treasurer of the Society), and Prof. 

 Owen. 



The first of these, Davidson,has contributed 1368 pages of letter- 

 press, and has drawn 6530 figures of Brachiopoda loitli his oion hands. 



Searles Wood has monographed the Mollusca of the Crag and the 

 Bivalves of the Eocene — making 872 pages of letterpress. Owen 

 has given 796 pages of text with appropriate plates on the Eeptilia 

 and Mammalia. Of these it may be said truly — 



" Si monumentum requiris — circumspice." 



In connexion with my researches in fossil Limuli, I would briefly 

 allude to two valuable contributions to the anatomy of the "King- 

 Crab," of the North-east coast of North America — one by my dis- 

 tinguished colleague and chief. Prof. Owen, published in the Linnasan 

 Transactions for this year ; ^ the other by Prof. Alph. Milne-Edwards 

 in the Annales des Sciences Naturelles.^ 



Limidtis polyphemus of North America, and the closely allied 

 species common to the Moluccas and the coasts of China and Japan, 

 is the sole existing type of this ancient race, whose longevity as an 

 Order in time is unsurpassed among the Crustacea, save by the 

 Entomostraca alone — Neolimulus of the Upper Silurian of Lanark 

 closely agreeing with one of the larval stages of the living Limulus, 

 as made known by the researches of Packard ^ and Dohrn.* 



As I shall fully treat of this subject in Part V. of my Monograph 

 of the Merostomata, now preparing for publication, I refrain from 

 dwelling upon them here at greater length. 



Among the many contributions lately made to our knowledge of 

 extinct forms of vertebrate life, those by Prof. Owen take pre- 

 cedence, both in number and importance. 



In a recent communication to the Eoyal Society (Phil. Trans. 

 1872, p. 173), Prof. Owen describes the remains of seven species of 

 Wombat from Darling Downs, Queensland, preserved in a lacustrine 

 deposit, associated with living species of Melania and other fresh- 

 water shells. These do not so greatly exceed in size the existing 



' Trans. Lin. Soc. 1873, vol. xxviii. pt. iii. p. 459, plates xxxvi. to xxxix. < 



^ Ann. des §c. Nat. Zoologie et Paleontologie, 1872-3, 5th. series, tome xvii. p. 25, 

 plates V. to xvi. 



3 "The Development of Limulus polyphemus,''^ by A. S. Packard, jun., M.D., 

 Mem. Boston Soc. Nat. Hist., 1872, vol. xi. pp. 155-202, pi. iii. -v. 



* "Zur Embryologie und Morphologie des Limulus polyphemus," von Dr. Anton 

 Dohrn, Jenaische Zeitschrift, 1871, Bd. vi. Heft 4, p. 680, Taf. xiv. and xv. 



