1851 SYDNEY AND TORONTO 111 



tion he had prepared a great part of his longer work 

 for publication; out of twenty -four or twenty -five 

 plates, nineteen were ready for the engraver when he 

 wrote his appeal to the Duke of Northumberland. In 

 this same year, 1852, he was also awarded the Royal 

 Medal in Physiology for the value of his contributions 

 to the Philosophical Transactions. 



In 1853, besides seeing some of these papers 

 through the press, he published one on the existence 

 of Cellulose in the Tunic of Ascidians, read before the 

 Microscopical Society, and two papers on the 

 Structure of the Teeth ; the latter, of course, like a 

 paper of the previous year on Echinococcus, being 

 distinct from the Rattlesnake work. The greater 

 work on Oceanic Hydrozoa, over which the battle of 

 the grant in aid had been waged so long, did not see 

 the light until 1858, when his interest had been 

 diverted from these subjects, and to return to them 

 was more a burden than a pleasure. 



In the second place, the years 1851-53, so full of 

 profitless successes in pure science, and delusive hopes 

 held out by the Government, were marked by an 

 equally unsuccessful series of attempts to obtain a 

 professorship. If a chair of Natural History had 

 been established, as he hoped, in the projected uni- 

 versity at Sydney, he would gladly have stood for it. 

 Sydney was a second home to him ; he would have 

 been backed by the great influence of Macleay ; and 

 in his eyes a naturalist could not desire a finer field 

 for his labours than the waters of Port Jackson. 



