Table of contents
December 11, 1869, Volume 21 No 24 pp369-382
About the coverBusiness and Personal
Top of page
Top of pageArticles
Improved Railway Supply Apparatus, Improved Rotary Grates and More - pp369 - 370
doi:10.1038/scientificamerican12111869-369
Metal Spinning - pp370 - 371
John Anderson, C. E.
doi:10.1038/scientificamerican12111869-370
Communication with and between Deaf Mutes - pp372 - 373
doi:10.1038/scientificamerican12111869-372a
Oxygen as a Source of Heat and Light - pp374 - 375
Adolph Ott
doi:10.1038/scientificamerican12111869-374
“How to Observe the Sun” - p375
J. N. Farrar, D. D. S.
doi:10.1038/scientificamerican12111869-375
The Manufacture of Lookingglasses and Mirrors - p375
doi:10.1038/scientificamerican12111869-375a
What We Have Done in 1869 and What We Intend to do in 1870 - p378
doi:10.1038/scientificamerican12111869-378
Announcement for 1870.—a Splendid Work of Art and Cash Premiums to be Given - p379
doi:10.1038/scientificamerican12111869-379a
Manufacturing, Mining, and Railroad Items - p379
doi:10.1038/scientificamerican12111869-379c
Recent American and Foreign patents - pp379 - 380
doi:10.1038/scientificamerican12111869-379d
How to Obtain Letters Patent for New Inventions - p381
doi:10.1038/scientificamerican12111869-381
