1.  On the Auditory Organs of the Crustacea.  Published in the “Annals of Natural History.”

2.  On the Anatomy of the genus Tethea.  Published in the “Annals of Natural History.”

3.  Report upon the Development of the Echinoderms.  To appear in the “Annals” for July.

4.  On the Anatomy and Physiology of the Salpae, with four plates.  Read at the Royal Society, and to be published in the next part of the “Philosophical Transactions.”

5.  On two Genera of Ascidians, Doliolum and Appendicularia, with one plate.  Read at the Royal Society, and to be published in the next part of the “Philosophical Transactions.”

6.  On some peculiarities in the Circulation of the Mollusca.  Sent to M. Milne-Edwards, at his request, to be published in the “Annales des Sciences.”

7.  On the Generative Organs of the Physophoridae and Diphydae.  Sent to Professor Muller of Berlin for publication in his “Archiv.”

By the end of the year he had four more to report:—­

1.  On the Hydrostatic Acalephae; 2.  On the genus Sagitta, both published in the “Report of the British Association” for 1851; 3.  On Lacinularia socialis, a contribution to the anatomy and physiology of the Rotifera, in the “Transactions of the Microscopical Society” 4.  On Thalassicolla, a new zoophyte, in the “Annals of Natural History.”  Next year he read before the British Association a paper entitled “Researches into the Structure of the Ascidians,” and a very important one on the Morphology of the Cephalous Mollusca, afterwards published in the “Philosophical Transactions.”  In addition 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 university at Sydney, he would gladly have stood for it.  Sydney was a second home to him; he would have been