This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ On The Progress Of Science As Exemplified In The Art Of Weighing And Measuring: Being The Presidential Address Delivered Before The Washington Philosophical Society, December 10, 1887 William Harkness Judd & Detweiler, 1888 Science; Weights & Measures; Science / Weights & Measures; Technology & Engineering / Mensuration; Weights and measures | On the Progress of Science as Exemplified in the Art of Weighing and Measuring by William Harkness, Paperback | Indigo Chapters