XCll PROCEEDINGS OE THE 



Master of Caius College, Cambridge, in the formation of the Philo- 

 logical Society in 1842, and had also a considerable share in the 

 management of the British Association for some years after its first 

 establishment in York in 1831. Of late years he devoted especial 

 attention to the subject of the introduction of the metric system into 

 this country. In November 1851 the Institution of Civil Engineers 

 invited essays to be delivered on the best system of remedying the 

 inconvenience resulting from the present want of uniformity between 

 the weights and measures and coins of the different countries of 

 Europe ; and the Institute awarded to Mr. Yates their Telford medal 

 for his essay on that subject. He was afterwards engaged in a sta- 

 tistical congress at Paris relating to the same subject, and prepared 

 an account of the origin and formation of the International Associa- 

 tion for obtaining a uniform decimal system of measures, weights, 

 and coins ; and he continued actively engaged up to the time of his 

 death in promoting the success of that Association. 



Mr. Yates always took great interest in the welfare of the Lin- 

 nean Society, contributing liberally to its funds when appealed to, 

 and frequently, while his health permitted, attending the Meetings 

 of the Society and Council ; and our library has been indebted to 

 him for numerous donations, some of very recent date. In his gar- 

 den at Highgate he was a very successful cultivator of flowering 

 plants, especially the Cycadece, of which he possessed a beautiful 

 coUectioD of drawings. These drawings have, through the kindness 

 of Mrs. Yates, become the property of the Linnean Society. 



Besides numerous able essays on classical, archaeological, and other 

 subjects, Mr. Yates was the author of the following papers relating 

 to Natural History : — 



1. "Account of a Variety of Argillaceous Limestone found in 

 connexion with the Ironstone of Staffordshire. (Trans. Geol. Soc. 

 vol. V. 1821.) 



2. " Notice respecting the Quartz-rock of Bromsgrove Lickie." 

 (Ibid. 2nd series, vol. ii.) Bead, June 1822. 



3. " Observations on the Structure of the Border Country of Salop 

 and North Wales ; and of some detached groups of Transition Rocks 

 in the Midland Counties." (Ibid. 2nd ser. vol. ii.) Bead, March 

 1825. 



4. " On the Formation of AUuvial Deposits." (Edinb. New Phil. 

 Journal, 1831.) 



5. " Notice of a Submarine Porest in Cardigan Bay." Read, 

 Nov. 1832. (Proc. Geol. Soc. vol. i.) 



6. "On Specimens containing Fossil Vegetables from the I^ew 



