PT - JOURNAL ARTICLE AU - Stevens, W. L. TI - New lecture apparatus for determination of reflection and refraction AID - 10.2475/ajs.s3-35.208.332 DP - 1888 Apr 01 TA - American Journal of Science PG - 332--333 VI - s3-35 IP - 208 4099 - http://www.ajsonline.org/content/s3-35/208/332.short 4100 - http://www.ajsonline.org/content/s3-35/208/332.full SO - Am J Sci1888 Apr 01; s3-35