The American Journal of Science and Arts, Volume 50 (First Series) / General Index to Forty-Nine Volumes

by Various

Patagonia fossil bones, R. Owen, xxxiii, 208; xxxv, 196.

— fossil remains, C. Darwin, xxxiii, 105.

Patents, number of new, in different countries in 1822, ix, 198.

—, agency for, at Washington, xxxi, 411.

Patent claims in Piedmont and Sardinia, remark on, xvii, 193.

Patten, J. H., air pump of, viii, 143.^f

—, — —, gazometer and balance beam of, ix, 92^f, 327.

—, — —, J. F. Dana, remarks on, viii, 275; ix, 327.

Patterson, on electricity from steam, xl, 382.

Pattinson, H., new mode of extracting silver from lead, xxxv, 299.