MAGNETIC VARIOMETERS OF THE SCHMIDT TYPE
by J. Mcg. Bruckshaw
Published by Hilger & Watts. 1st. 1954
Very good condition. Their full use and maintenance illustrated by details of the Hilger and Watts Variometers. Red cloth. B/w photos. 115 pages.
Name in ink to front endpaper.
Stock no. 674999
Located at: Stella Books, Tintern