Linnean Society. 127 



rank which it had attained, by his great talents, indefatigable industry, 

 sound judgement, and enlarged views as a naturalist ; by the high esti- 

 mation in which he had long been held by men of science all over the 

 world ; by the excellence of those valuable and accurate works in which 

 he had done so much to promote and improve the study of natural history; 

 and especially by the qualities of his heart, mind, and temper, for which 

 his memory would long be revered by those who had enjoyed the happi- 

 ness of his friendship. He could not forbear expressing what he felt on 

 the present occasion ; and his anxiety that whatever choice might be 

 made by the Society to fill the vacancy in its Chair, should be such as 

 would contribute to its prosperity, however impossible it might be ade- 

 quately to supply the loss which it had now so much to regret. 



.^pril 15. — A Letter was read, addressed to the Secretary, from 

 Charles Lucian Bonaparte, Prince of Musignano, F.M.L.S., dated on 

 board the Delaware, near Gibraltar, March 20, 1828, containing the fol- 

 lowing notice relative to the migration of certain birds. " A few day- 

 " ago, being 500 miles from the coasts of Portugal, 400 from those of 

 " Africa, &c. we were agreably surprised by the appearance of a few 

 " Swallows, Hirundo urbica and rustica. This, however extraordinary, 

 " might have been explained by an easterly gale, which had cut off the 

 " Swallows migrating from the Main to Madeira, only 200 miles distant 

 " from us; but what was my surprise on observing several small Warblers 

 " hopping about the deck and rigging ! These poor little strangers, ex- 

 *' hausted as they were, were soon caught and brought to me. The 

 " following short list is that of the species. 



" 1. Sylvia trochilus. 2. Sylvia erithacits fTethjs, Temm.). 3. Syl- 

 " via Suecica, or rather a similar species which I have already received 

 " from Egypt and Barbary. 4. A species new to Europe, and perhaps 

 " even a nondescript, having the plumage of an Anthus, and which I 

 *' think belongs (as Sylvia cysticola and others) to the hitherto African 

 " genus Malurus. This, however, must rest undecided, my specimen 

 " missing its tail, which was pulled off by the sailor who caught it." 



A Paper was read On the Mammary Organs of the Kanguroo: by 

 John Morgan, Esq., F.R.S., &c., in which a detailed account was given 

 of a recent dissection of these parts, both in the virgin and in the im- 

 pregnated animal; together with the authour's opinions respecting the 



