All About the Midwinter Fair, San Francisco

Observations On The Functions Of The Liver: More Especially With Reference To The Formation Of The Material (1865)

Observations On The Disturbances In The Madras Army In 1809 (1812)

Observations On The Distinguishing Symptoms Of Three Different Species Of Pulmonary Consumption: The Catarrhal, The Apostematous, And The Tuberculous (1813)

Observations On The Discourse Of Natural Theology (1835)

Observations On The Cultivation Of Organic Science (1848)

Observations On The Hausa And Fulfulde Languages (1861)

Observations On The Epidemic Now Prevailing In The City Of New-York, Called The Asiatic Or Spasmodic Cholera (1832)

Observations On The Construction Of Railway Carriages: Together With A Paper On Railways And Their Management (1868)