1896.] BULBS OF ZOOLOeiOAI, NOMBSOLATtrEB. 307 



species can be got into a page (which appears to be barely possible) 

 and allow 800 pages to each volume, 96 volumes would be required 

 to complete ' Das Tierreich.' As, however, the great firm of 

 Friedlander and Son ' have undertaken the publication of the work, 

 and appear to have agreed to find the necessary funds to pay for 

 the contributions to it, we may, I think, feel tolerably certain that 

 the task will be undertaken, although it is probable that many of 

 us may not live to see its completion. 



The German Rules for Nomenclature (App. II. no. 10), to which 

 I am about to direct your special attention to-night, are to be those 

 employed by the various contributors to the 'Tierreich,' as their 

 guide in determining the scientific names to be used in the work. 

 It will be obvious, therefore, that for this cause they are of special 

 importance and are well worthy of our consideration. Prof. P. E. 

 Schuize, who has undertaken the editorship of ' Das Tierreich,' 

 and with whom I have been in correspondence on the subject, 

 having courteously expressed a wish that it might be possible to 

 reconcile the differences between the German Eules and the Code 

 of Nomenclature adopted by the British Association and usually 

 employed in this country, I have undertaken to bring the subject 

 before this Society. 



In order to consider whether we can agree it is necessary first 

 to ascertain the points of difference, and these are what I propose 

 to bring forward to-night. But before doing so I will commence 

 with a few general remarks on some of the principal codes of 

 nomenclature that have been put forward by modern zoologists. 



As we all know, I believe, the first code that adopted the " law 

 of priority" as its principal rule and originated various other 

 usages, to which we are now well accustomed, was that drawn up 

 by Strickland in 1842 (Appendix II. no. 1). The Stricklaudian 

 Code, however, although generally approved and adopted, was not 

 at that time formally sanctioned by the British Association. 



In ] 863 the late Sir William Jardine took up the subject, and, 



" The contract between the Deutsche Zoologische Gesellschaft and Messre. R. 

 Friedlander and Son will be found printed at full length in the ' Vevhand- 

 lungen ' of that Society for 1895, pp. 4 et seqq. 



Number. 



Brought forward 84,250 



9. Crustacea 20,000 



10. Arachiida 10,000 



11. Myriopoda and Prototracheata 3,000 



12. Lisecta 250,000 



13. Echinoderma 3,000 



, 14. Vermes 6,150 



16. Ccelenterata 2,000 



16. Spongite 1,500 



17. Frotoeoa 6,100 



Total 386,000 



This may be compared with Dr. Giinther's estimates of the described species 

 tn 1830 (73,688) and 1881 (311,653), lately published in the 'Annals & Mag. 

 of Nat. History ' (sor. 6, vol. xvii. p. 180). 



20* 



