Images for The First Ascent of Mont Blanc Photographs and copy illustrations used by De Beer during his research for the book, and for inclusion in the book. Images include: Manuscript letters and journal pages by Michel-Gabriel Paccard. Portrait of Paccard as an old man. Excerpt of an annotated copy of M Ozanam, La Trigonometrie Rectiligne et Spherique. Michel-Gabriel Paccard's prospectus notice. Sketches by Marc-Thodore Bourrit, 1785. Photographs of Mont Blanc, and sketches based on those found in Baron Adolf Traugott von Gersdorf's diaries, 1786. Offprint of T Graham Brown, "Bourrit's Attempt on Mont Blanc by the Aiguille du Gouter in 1784, and the First Assent [sic] of the Dome du Gouter by his Guides". Facsimile copies of Bourrit's letters and sketches. Mid 20th Century