Vol. 1 has title: A natural history of uncommon birds.
Vols. 5-7 have title: Gleanings of natural history : exhibiting figures of quadrupeds, birds, insects, plants, &c., most of which have not, till now, been either figured or described.
Vols. 5-7 have added title page in French: Glanures d'histoire naturelle.
Vols. 5-7 have text in English and French in parallel columns.
"The author seems to have intended each volume to be the last one, but extended the work to four parts and continued it under the title of 'Gleanings of natural history' to seven parts."--Catalogue of the Edward E. Ayer Ornithological Library, page 193.