Letter from Boyd Caldwell & Co. to B.J. Harrington, written from Lanark, Ontario.
Letter from Boyd Caldwell & Co. to B.J. Harrington, written from Lanark, Ontario.
Letter from C. Hoffman to B.J. Harrington, written from Ottawa.
Letter from C. Kirchhoff to B.J. Harrington, written from New York.
Letter from C. Marchand to B.J. Harrington, written from Paris.
Letter from C. Marchand to B.J. Harrington, written from Paris.
Letter from C. Marchand to B.J. Harrington, written from the Museum d'Histoire naturelle.
Letter from C. Whitman Cross to B.J. Harrington, written from Denver (Colorado). Written on letterhead of the United States Geological Survey, Division of the Rocky Mountains.