"A person well acquainted with one of the fine arts, and competent to pass a judgement in relation thereto; a critical judge of art or of matters of taste" (OED).

"A four-wheeled carriage with a half-head behind which can be raised or let down at pleasure, having a seat in front for the driver, and seats inside for two couples to sit facing each other."(OED). "Aristocratic vehicle, for dress occasions, mainly used in town"(Janeite Deb, Jane Austen In Vermont, Travel in Sense & Sensibility~Part IV~Carriages, cont'd, Web)

"In or into a position apart or separate; apart" (OED).

William Cowper, (born November 26, 1731, Great Berkhamstead, Hertfordshire, England—died April 25, 1800, East Dereham, Norfolk), one of the most widely read English poets of his day."(https://www.britannica.com/biography/William-Cowper). "Marianne, in Sense and Sensibility, complains about the way Edward Ferrars reads Cowper aloud...Cowper's mediative poetry celebrated the beauty of nature. He is often considered an early Romantic poet, and as such would particularly appeal to Marianne"(Patrice Hannon, 101 Things You Didn't Know About Jane Austen: The Truth About the World's Most Intriguing Romantic Literary Heroine, p. 96).

"Exeter is located in the Southwest of England. It is situated on the River Exe in the county of Devonshire."(http://www.exeterviews.co.uk/).