VOLUME X. CORRESPONDENCE. 215 427 PART FOURTH; COMPRISING PRIVATE LETTERS FROM THE SUPPLEMENT, INDEXES. 1785-1790. 11. Pennsylvania Fireplace, (Plate V.) 12. Profile of the Pennsylvania Chimney and Fireplace.—Stafford shire Fireplace. (Plate VI.) 13. Magical Squares, (Plate VII.) 19. Chart of the Atlantic Ocean, exhibiting the Course of the Gulf Stream, &c., (Plate XIII.) 20. Illustrating the Causes and Cure of Smoky Chimneys, (Plate XIV.) 21. Stove for burning Pit-coal, (Plate X XV.) 22. Portrait of Mrs. Franklin, Frontispiece, VII. VOL. I. D |