Encloses a paper. Says C. F. Gauss will make six magnetometers in two months.
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The Sir John Herschel Collection
The preparation of the print Calendar of the Correspondence of Sir John Herschel (Michael J. Crowe ed., David R. Dyck and James J. Kevin assoc. eds, Cambridge, England: Cambridge Univ. Press, 1998, viii + 828 pp) which was funded by the National Science Foundation, took ten years. It was accomplished by a team of seventeen professors, visiting scholars, graduate students, advanced undergraduates, and staff working at the University of Notre Dame.
The first online version of Calendar was created in 2009 by Dr Marvin Bolt and Steven Lucy, working at the Webster Institute of the Adler Planetarium, and it is that data that has now been reformatted for incorporation into Ɛpsilon.
Further information about Herschel, his correspondence, and the editorial method is available online here: http://historydb.adlerplanetarium.org/herschel/?p=intro
No texts of Herschel’s letters are currently available through Ɛpsilon.
Encloses a paper. Says C. F. Gauss will make six magnetometers in two months.
Asks JH if he would like the Meteorological Committee to meet before R.S.L. Council meets. Having received news that the wife of [Thomas] Spring Rice, the person in charge of the fixed observations, is 'dangerously ill,' ES proposes that responsibility of the project be moved to one of the executive departments.
Informs JH that a meteorological committee has been called. Discusses financial matters concerning the fixed observatories. Has written to [Thomas] Spring Rice.
Reports that the precept has been sent for putting the fixed magnetic observatories at St. Helena, the Cape, and Canada into execution, and that the instruments for three Indian observatories have been ordered. Writes that Humphrey Lloyd has made plans for the portable buildings and fixed stations. Discusses expenses of the observatories.
Reports his successful meeting with Hussey Vivian, whose full support of the fixed observatories is to be communicated to the R.S.L. Council by ES. Says that Vivian desires to read the memorials of the B.A.A.S. and the R.S.L. Will look into the changes in design of the magnetometers. Suggests budgets for the observatories.
Encloses a copy of financial estimates concerning the fixed observatories. Expects bills will be paid by the Treasury. Has conveyed Hussey Vivian's support of the project to the Council of the R.S.L. Clarifies that no vertical magnetometers have been or will be ordered until Humphrey Lloyd is satisfied with their design. Reports that the three officers have been selected for the project. Mentions praise from C. F. Gauss for the project.
Reports that the original cost estimate of the magnetometers was low and that other instruments have been ordered. Asks to borrow clocks from the R.S.L. and the R.A.S. Has written to Major Jarvis for observers for the East Indies observatories but expects none will be found.
Suggests changes in the memorial regarding fixed observatories.
Favors C. F. Gauss's theory of two magnetic poles, provided it satisfies the data. Office of the Artillery at Woolwich plans to 'furnish a set of instruments by private subscription.' Suggests a staff officer be appointed for the correspondence between observatories. Worries that the East Indies observatory will fail.
Dublin University is available on 2 July for instruction of the officers to be employed in the magnetic observatories. Suggests a note be sent to the R.S.L. stating that the changes in instrumentation are only slight modifications.
Supports furnishing a wooden building at St. Helena despite the high temperatures of the tropical climate. Considers the expenses involved.
Suggests JH include in his report a discussion of the 'dividing line of the positive and magnetic fluids' and 'separating line between the northern and southern intensities.' Presents C. F. Gauss's ideas on this topic. Suggests a trip plan for James Ross in order to obtain absolute measures of magnetic intensity on the globe.
Relays the opinions of a returning officer from St. Helena that a wooden building need not be built there.
Has presented the draft of the report to [T. R.] Robinson, [Charles] Wheatstone, and [J. F.] Daniell. Points out mistakes in the report. Remarks that the dipping needle has greatly improved over the years, thus increasing instrumental accuracy. Encloses Humphrey Lloyd's contribution to the report.
States he has received the list of instruments and their prices sent by JH.
Encloses a letter from Humphrey Lloyd. Anticipates Lloyd's arrival. Worries he will not be ready with the necessary forms before James Ross sets sail. Includes many calculations.
Reports that the ships to be used for James Ross's voyage will not be available for a week and that Humphrey Lloyd is busy preparing instructions. Proposes that the ships receive their own sets of instruments.
Accepts JH's dinner invitation, regretting that James Ross is unable to attend. Encloses a letter from Humphrey Lloyd.
Asks JH whether he presented to the Council of the R.S.L. the resolution of the Meteorological Committee regarding references made by the 'Colonial Office, Trinity[?] Board, etc.'
Supports JH's idea of having one simultaneous observation each day. Suggests that there might be two a day. Has suggested to Humphrey Lloyd that hourly observations take place once a fortnight. Says Lloyd wishes to speak about supplies.