RT Journal Article SR Electronic T1 Projection of microscope photographs JF American Journal of Science JO Am J Sci FD American Journal of Science SP 259 OP 261 DO 10.2475/ajs.s3-15.88.259 VO s3-15 IS 88 A1 Draper, J. C. YR 1878 UL http://www.ajsonline.org/content/s3-15/88/259.abstract AB