Autograph letter signed ("J. R. Lowell").
8vo. 1 p. on bifolium. With carte-de-visite photograph.
To Mrs. Jane Gray (née Jane Lathrop Loring), wife of the eminent American botanist Asa Gray (1810-88), declining an invitation: "I am very much obliged by your very kind invitation, but as arrangement has already been made to send a carriage for me here & to bring me back hither after the Circus-performance is over, I think it wiser to deny myself the pleasure you offer me. With kindest regards to the friend of flowers & of all good things, faithfully yours [...]"