754 Extracts from the Minute-Book of the Linnean Society. 
Edward Smith, (the President of the Society,) the 1 
Meeting was adjourned to Tuesday the first of April. - 
April 15. Read a letter, addressed to the Secretary, from 
Charles Lucien Bonaparte, Prince of Musignano, 
F.M.L.S., and dated on board the Delaware, near 
Gibraltar, March 20th, 1828, containing some curious 
facts relative to the migratory habits of certain species 
of Hirundo and Sylvia. The following are extracts : 
** [n closing my letter I happen to think that the fol- 
lowing fact may be thought interesting to some of 
your ornithological gentlemen. A. few days ago, being 
500 miles from the coasts of Portugal, 400 from those 
of Africa, &c., we were agreeably surprised by the 
appearance of a few Swallows (Hirundo urbica and 
rustica). ‘This, however extraordinary, might have 
been explained by an easterly gale, which might have 
cut off the swallows migrating from the main to Ma- 
deira, only 200 miles distant from us; but what was 
my surprise, in observing several small warblers hop- 
ping about the deck and riggings. "These poor little 
strangers, exhausted as they were, were soon caught 
and brought to me. The following is a list of the 
species :—1. Sylvia Trochilus. 2. Sylvia Erithacus, 
Lath. (Tithys, Temm.). 3. Sylvia 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 non-descript, having the plumage 
of an Anthus, and which I think belongs (as Sylvia 
Cisticola and others) to the Aitherto African genus 
Malurus. This, however, must rest undecided, my 
specimen 
