Text Online
From:
Jean-Jacques Ampère (fils d'Ampère)
To:
André-Marie Ampère
Date:
4 novembre
1824
Source of text:
().
Summary:
No summary available.
Contributor:
La Correspondance d’André-Marie Ampère
No summary available.
Sending the fourth volume of his own Mécanique céleste; comments on various parts. Work is being done on the figure of the earth.
JH carried portable barometer by Edward Troughton and thermometer by Mr. Newman to Europe and compared these to instruments used by individual scientists and observatories. Reports results to Board of Longitude.
Encloses differences determined through indications of portable barometer, standard, thermometer, and various other instruments.
Has heard that JH has arrived back in England. Sends one of his own papers for his library. Regrets that JH did not call at Paris on his travels. Sends a parcel from P. S. Laplace. Remember him to Charles Babbage.