Scheibler, by his simple and accurate tonometer, has recorded pitches in Vienna about 1834 from a1 433.9 to 440.2.
1829 Scheibler No.
1859 Scheibler No.
1859 Paris opera 1836 Scheibler, Stuttgart, proposed standard (440 at 69° F.).
1834 Scheibler No.
Scheibler Cagnard de la Tour Scheibler Nike.
Cagnard de la Tour Scheibler Scheibler Ellis..
Scheibler discovered l-arabinose in 1869, and regarded it as a glucose; in 1887 Kiliani proved it to be a pentose.
Johann Heinrich Scheibler (1777-1838) tuned two forks to an exact octave, and then prepared a number of others dividing the octave into such small steps that the beats between each and the next could be counted easily.