354 JOURNAL OF THE PLYMOUTH INSTITUTION. 
been elected a Fellow six years previously ; and the president on 
that occasion remarked that Mr. Froude's investigations completely 
took the lead in this question, so important to a maritime nation ; 
and that no one had ever done so much towards the establishment 
of a reasonable theory of the oscillation of ships in wave-water, as 
well as for its experimental verification. Shortly after public 
attention had been called to this subject by the melancholy catastro- 
phe of the loss of the Captain, Mr. Froude made an exposition of 
his favourite study the subject of one of the most valuable lectures 
ever delivered before this Institution. The results of Mr. Froude's 
labours are chiefly embodied in scattered papers and official reports ; 
but among his inventions, apart from those connected with his 
special subject of enquiry, is a dynamometer for measuring the 
power delivered at the end of the screw shaft in large marine 
engines. 
THE LATE EDWARD HEARLE RODD. 
The Institution has likewise to regret the loss by death of one of 
its oldest corresponding members, the late Edward Hearle Rodd, of 
Penzance, the most distinguished ornithologist that Cornwall has 
produced — one who held in that county and for his own day some- 
what of the position that Colonel Montague occupied in a former 
generation for Devon. A member of an old Cornish family, third 
son of the Eev. E. Rodd, of Trebartha, he became a solicitor, and 
was for many years in practice at Penzance, of which borough he 
was Town Clerk until he resigned that office in favour of his 
partner, Mr. T. Cornish. His first publication, a List of British 
Birds, with special reference to the peculiarly rich ornithology of 
Cornwall, was published in 1864, and was reissued in the same 
form, subsequently expanding into an elaborate and valuable work 
on British ornithology, published by Messrs. Triibner, and com- 
pleted not long before the author's death. Mr. Rodd was a 
frequent contributor to local and other scientific societies on his 
favourite study, and the Plymouth Institution was indebted to 
him for many valued communications. The very extensive and 
valuable collection of birds which he had formed, and which 
includes a greater number of rare species than any other in the 
West of England, is now deposited under his will as a heirloom at 
the family seat, Trebartha. 
