☞ A discourse, intended to commemorate the discovery of America by Christopher Columbus : delivered at the request of the Historical Society in Massachusetts, on the 23d day of October, 1792, being the completion of the third century since that memorable event : to which are added, four dissertations, connected with various parts of the discourse, viz. 1. On the circumnavigation of Africa by the ancients : 2. An examination of the pretentions of Martin Behaim to a discovery of America prior to that of Columbus, with a chronological detail of all the discoveries made in the 15th century : 3. On the question, whether the honey-bee is a native of America? : 4. On the colour of the native Americans and the recent population of this continent.