Sends his paper on earthquakes [(1840), Collected papers 1: 53–86]. Now sets less value on theoretical reasoning in geology than when he wrote it.
Asks for the reference in which JP states that some erratic boulders came from a lower to a higher level. CD is writing a paper ["Transportal of erratic boulders", Collected papers 1: 218–26] in which he believes he has the true explanation. Would like as many instances, with details, as possible.
JP’s reference was clear, but seems to be different from the case cited by W. Hopkins about erratic conglomerate boulders. Asks for more details on the latter. CD does not think much of Hopkins’ paper ["Elevation and denudation of the district of the lakes of Cumberland and Westmorland", Q. J. Geol. Soc. Lond. 4 (1848): 70–98].
Thanks JP for his note and reference. CD’s paper will not deal with the general question of erratics but only their transportal from a lower to a higher level ["The transportal of erratic boulders", Collected papers 1: 218–27]. His notion is that the boulders were transported by coast-ice, not drifting icebergs, and that during the period of transportal the land was subsiding. Can JP tell him whether the raised conglomerate boulders he observed were rounded or angular?
Some geologists (especially H. T. De la Beche) doubt boulders have really been carried above their parent rock, but rather thought they were left behind as a result of denudation. Asks JP’s view of this, which he can quote. Supposes he will be well abused for his paper, but is resolved "not to show a white feather".
Informs JH that the B.A.A.S. has placed him on a committee to provide two actinometers for observing high in the Alps.
Informs JH that the B.A.A.S. has placed him on a committee to study the possibility of using balloon ascents to study the upper atmosphere.
Informs JH that the B.A.A.S. has again placed him on the committee to supervise the translation and publication of foreign scientific memoirs.
JH, G. B. Airy, and Thomas Henderson are appointed to oversee the publication of the reductions of the calculations of N. L. Lacaille's stars. They will have £184 at their disposal.
JH, William Whewell, George Peacock, Humphrey Lloyd, and Edward Sabine are appointed by the B.A.A.S. to study systems of simultaneous magnetical and meteorological observations. They will be granted £50.
Asks whether JH will be prepared to present the committee report on N. L. Lacaille's stars at the B.A.A.S. meeting on 29 July.
Asks whether JH will be prepared to give the committee report on systems of simultaneous magnetical and meteorological observations at the B.A.A.S. meeting on 29 July.
JH continues to serve on the committee to supervise and translate foreign scientific memoirs [see JP's 1840-10-19].
Informs JH that the B.A.A.S. has placed him on a committee to conduct experiments by capture balloon on the atmosphere.
JH, G. B. Airy, and Thomas Henderson are appointed to oversee the publication of the reductions of the calculations of N. L. Lacaille's stars. They will have £105 at their disposal.
JH, William Whewell, George Peacock, Humphrey Lloyd, and Edward Sabine are appointed by the B.A.A.S. to study systems of simultaneous magnetical and meteorological observations. They will be granted £100.
Asks whether JH will be prepared to give the committee report on systems of simultaneous magnetical and meteorological observations at the B.A.A.S. meeting on 23 June.
Asks whether JH will be prepared to present the committee report on N. L. Lacaille's stars at the B.A.A.S. meeting on 23 June.
Will JH be prepared to present report on 'Nomenclature of Stars' at Manchester meeting in June?
Informs JH that the B.A.A.S. has place him on a committee to conduct experiments by capture balloon on the atmosphere.