- Home
- Instrument Collection
- Barometers
- Thermometers
- Hygrometers
+ Rain and Evaporation
+ Slide Rules
+ Other Instrument Collections
- Catalogs
- Miscellaneous Downloads
- Barometric Calculations
- Barograph Accuracy Evaluations
Published on
Today I added two more instrument catalogs to the website catalog collection:
  • A Negretti & Zambra hygrometer catalog from 1954.  It's 48 pages long.  Go to N&Z catalog webpage.
  • A nice 1938 catalog from Taylor Instruments of Canada.  It's 52 pages long.  Go to Taylor catalog webpage.
Published on
Today I scanned and posted a manual for Bendix Friez Model 441 and 443 registers. It's a very poor copy, the original was an old pre-Xerox photocopy with faint print and discolored paper. I posted it anyway because it's fairly rare. It's 16 pages long and is in the General Instrument Download webpage.

​Go to General Instrument Download webpage.
Published on
Today I posted a short description of 18th century English instrument maker George Adams, complete with a price list.  It may be found in the Catalog Collection, under United Kingdom.
Go to George Adams webpage.

I also posted two short booklets on pyranometers, from 1922 and 1932.
Go to Pyranometer Download webpage.
Published on
Picture
Today I added a W M Welch model 1233 classroom barometer in my collection to the website.  It was sold by Welch but actually made by Taylor Instruments.  It's huge, the diameter of the dial is 12 inches (30 cm).  It probably dates from the 1950s.
​
Go to Welch 1233 webpage.
Real Time Web Analytics