PT - JOURNAL ARTICLE AU - H. L. Smith TI - On a mechanical finger for use with the microscope AID - 10.2475/ajs.s2-41.123.331 DP - 1866 May 01 TA - American Journal of Science PG - 331--337 VI - s2-41 IP - 123 4099 - http://www.ajsonline.org/content/s2-41/123/331.short 4100 - http://www.ajsonline.org/content/s2-41/123/331.full SO - Am J Sci1866 May 01; s2-41