Rock cut, near Auburn, Placer County

Cascades and Festival Hall, L. P. Exp. [i.e., Louisiana Purchase Exposition], 1904

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

The Funeral of President Lincoln, New-York, April 25th, 1865

[Louis Agassiz, full length portrait standing next to chalk board with drawings of six inverterbrates]