Its purpose is such as I flatter myself will obtain your approbation. It is to add incitements to the study of natural hiftory, by placing in a ftronger light than has yet been done, the advantages that may refult from it to the most exalted and delightful of all arts, that of poetry. That this ftudy is not only a fource of agreeable and innocent amusement, but conduces to humanize and enlarge the mind, and in various ways to promote the happiness of mankind, has been fufficiently proved by the observations of many ingenious writers. But its application to the improvement of poetry, has not, I believe, been the fubject of particular difcuffion.

cuffion. By considering it in this view, I therefore thought that something new in its favour might be fuggefted; and if what I have done shall be the means of acquiring you a fingle fellow-labourer in your interesting researches into BRITISH ZOOLOGY, I fhall not be diffatisfied with my fuccefs.

Books printed for J. JOHNSON, No. 72, St. Paul's Church Yard, London.

Poems, by Mrs. Barbauld, 5th Edit. price 38. fewed.

Mifcellaneous Pieces in Profe, by J. Aikin and A. L. Barbauld, 2d Edit. price 3s. fewed.

Devotional Pieces, with Thoughts on the devotional Tafte, by Mrs. Barbauld. Price 38. fewed.

Effays on Song-Writing, with a Collection of fuch English Songs as are most eminent for poetical Merit, by J. Aikin, 2d Edit, price 3s. 6d. fewed.

C. Julii Agricola Vita: The Life of Agricola, by Tacitus, with a Tranflation by J. Aikin. Price 2s. fewed.

Selecta Quædam ex C. Plinii Secundi Hiftoria Naturali; ad ufum Scholarum accomodata. Price 3s. bound.