Progress of the Brooklyn Bridge - pp31 - 32

doi:10.1038/scientificamerican01151881-31

PDF (804 KB)

Progress of the Brush System of Electric Lighting - p32

doi:10.1038/scientificamerican01151881-32

PDF (308 KB)

On Aids to Hearing - pp32 - 33

doi:10.1038/scientificamerican01151881-32a

PDF (471 KB)

Harvest Figures - p33

doi:10.1038/scientificamerican01151881-33

PDF (201 KB)

Professor Gamgee's Ice Machine - p33

doi:10.1038/scientificamerican01151881-33a

PDF (201 KB)

Electro-Metallurgy - p33

doi:10.1038/scientificamerican01151881-33b

PDF (201 KB)

Portable Fountain Water Closet - p34

doi:10.1038/scientificamerican01151881-34

PDF (255 KB)

Steamboats for South American Rivers - p34

doi:10.1038/scientificamerican01151881-34a

PDF (255 KB)

Improved Tongs - pp34 - 35

doi:10.1038/scientificamerican01151881-34b

PDF (522 KB)

Improvement in Machine Guns - p35

doi:10.1038/scientificamerican01151881-35

PDF (293 KB)

Howe's Cave - pp35 - 36

H. C. Hovey

doi:10.1038/scientificamerican01151881-35a

PDF (403 KB)

The Face in Health and Disease - p37

doi:10.1038/scientificamerican01151881-37

PDF (180 KB)

The Chicago Police Alarm System - p37

doi:10.1038/scientificamerican01151881-37a

PDF (180 KB)

Engineering Inventions - p37

doi:10.1038/scientificamerican01151881-37b

PDF (180 KB)

A Mysterious Explosion and Its Causes - p38

Joshua Rose, M.E.

doi:10.1038/scientificamerican01151881-38

PDF (235 KB)

Curious Time Measurers - pp39 - 40

doi:10.1038/scientificamerican01151881-39

PDF (440 KB)

Mechanical Inventions - p40

doi:10.1038/scientificamerican01151881-40

PDF (176 KB)

Agricultural Inventions - pp41 - 42

doi:10.1038/scientificamerican01151881-41

PDF (378 KB)

Cellar for Manufacturing Ice - p42

doi:10.1038/scientificamerican01151881-42

PDF (240 KB)

Human Footprints in Kentucky Sandstone - p42

doi:10.1038/scientificamerican01151881-42a

PDF (240 KB)

Miscellaneous Inventions - p42

doi:10.1038/scientificamerican01151881-42b

PDF (240 KB)