Text Online
From:
Conrad Kupper
To:
John Tyndall
Date:
16 Sept 1847
Source of text:
MS JT/5/15c, RI
Summary:
No summary available.
Contributor:
Tyndall Project
No summary available.
Encloses copies of configurations of nebulae clusters and explains his readings. Has he heard of Macedoine Melloni's water eye piece? [Andrew] Graham has invented a new micrometer.
Asks for latest chemical information on platina groups, or 'Platinoids.' In trying to remove platina from mineral specimens JH may have found new metal. Describes its characteristics. P.S.: Keep this information private.
No summary available.
Informing JH that he has sent a letter to John Lee [RS:HS.4.117] and that Lee agrees with WB and wonders if it would be possible to obtain JH's support. Encloses drawings and details of Francis Ronalds's self registering barometer.