Certificate of Marvin as to the Position of the Expedition on March 25, 1909.
IV.

Bartlett's Observations, April 1, 1909.
V.Certificate of Bartlett as to the Position of the Expedition April 1, 1909.
VI.

Peary's Observations April 6, 1909.
[NOTE .-- The originals were all made in pencil in notebooks.

The engravings in line printed in this appendix are reproductions in slightly reduced size of tracings carefully made of the original manuscripts.

The enclosing line in each case indicates the edges of the leaf on which the original work was written.
The size of this leaf is, with practical uniformity throughout the series, 4 x 6-3/4 inches.