Rittenhouse Vol. 12 No. 1 (Issue 45), January 1998 : Journal of the American Scientific Instrument Enterprise
Hastings-on-Hudson, NY and Acton, MA: David & Yola Coffeen and Raymond V. Giordano 1998. First Edition. 32 pages.Publisher's printed wraps. Illustrated. A bright clean copy. Near Fine. Wraps. 
John Bird and the Origin of the Sextant by DEBORAH JEAN WARNER.
Circular Dividing Engines in the United States before 1900 by ROBERT C. MILLER.
Thomas Alva Edison's Gift to Milan High School by THOMAS B. GREENSLADE, Jr.
A Constant Deviation Wavelength Spectrometer Made by Adam Hilger, Ltd. by NOAH RINDOS.
The Beckman DU Spectrophotometer by JON EKLUND.
The Rittenhouse Journal of the Scientific Enterprise was a scholarly journal focused on increasing and distributing knowledge about scientific instruments made and/or sold in the US and the Americas. Throughout its 23 years of publication (and a total of 70 issues), the journal covered areas including mathematical, optical and philosophical instruments, chemical, physical and electrical apparatus, sundials and globes; and time periods from the 17th to the mid-20th century. Authors of the various articles in the journal are well known scholars from major institutions, collectors, and dealers in the field of scientific instruments.