Notes, Critical and Practical on the Book of Leviticus (Classic Reprint)

Practical Gold-Mining (Classic Reprint)

Practical Notes on Hydraulic Mining (Classic Reprint)

Placer Mining for Gold in California (Classic Reprint)

Practical Notes on Hydraulic Mining Classic Reprin

Sampling and Examination of Mine Gases and Natural Gas (Classic Reprint)

Notes, Critical and Practical, on the Book of Numbers (Classic Reprint)

Notes on Practical Physics (Classic Reprint)