| Description | Table of magnetic observations, with magnetic declination, magnetic intensity, and magnetic inclination [or dip] recorded at five minute intervals, twelve observations per hour, from 10.00am on 22 April to 9.00am on 23 April 1840.
With tables of magnetic and meteorological observations made from 4.00pm to 11.00am in January 1840, and 5.00pm to 11.00am in February and March 1840 [full dates not given]. The magnetic information has columns for time, declination, horizontal intensity, inclination [dip] and period of oscillation. Meteorological data includes columns for barometer and thermometer readings, wind direction and strength, ferocity, clouds, and rainfall.
The magnetic observations are headed [p.1]: 'Terminsbeobachtungen zu Prag am 22 und 23 April 1840'. The dual tables are headed: 'Monatliche Mittel der Prager Beobachtungen [Monthly means of the Prague observations]. With a list of observers [p.2]: 'Fritsch, Kreil, Kurunda, Leyer'. Signed [p.3] 'Kriel'. |