Sydney Observatory Papers No.31
SYDNEY OBSERVATORY : 1858 to 1958 Part 4
By HARLEY WOOD
GEORGE ROBERTS SMALLEY
George Roberts Smalley was appointed on the 6th August, at the
recommendation of the Astronomer Royal of England and arrived in
Sydney on 7th January, 1864, accompanied by his sister and family of
three. Smalley from the County of Suffolk and after taking his B.A.
Degree at St. John’s, Cambridge, in
1845, was Assistant Astronomer at the Royal Observatory of Good Hope,
and lecturer in Mathematics in King’s
College in London.
The Astronomer Royal prepared for the new Director of the
Observatory a set of instructions which were very extensive and far
beyond the resources that Smalley could command. Among the nineteen
objects listed, the more important were :-
1. The formation of a Southern Catalogue of Stars
2. The trigonometrical survey of N.S.W.;
3. Magnetic observations both for pure science and for
assistance to navigation
4. Meteorological observations [pg.11]
5. A time service, including the rating of ship’s chronometers
6. The erection and superintendence of tide gauges
7. General observations of eclipses, occultations,
minor planets, southern comets, measures of double stars, nebulae and
the like, and observations of Mars or Venus for parallax ;
8. The promotion of education in Astronomy.
Smalley in reporting on these (1864, January 28), naturally
pointed out “that the various
suggestions, of Professor Airy, valuable as they are in every point
of view, can only be fully carried out gradually as the occasion may
arise and with the aid of additional assistance to the funds and
staff of this establishment”.
Scott’s attempt at education, he
pointed out, had ended unsatisfactorily and at present visitors were
received at the Observatory on Monday afternoon of each week, and by
appointment, on one evening each month at which attendance was so far
unsatisfactory. Smalley decided, that he could go on with the
magnetic work and tidal observations and urged that the
trigonometrical survey be started, but, having in mind the experience
of Scott, he decided to restrict the programme on the meridian
instrument which, he said in his first report to the Observatory
Board, should be replaced by a first class instrument. However he
made an arrangement to provide an azimuth mark on the northern side
of the Harbour at a distance of 1.79 miles. He limited the
observations to clock stars, stars required for observation of
latitude and longitude or as reference stars in the work with the
equatorial. Smalley’s main work with
the equatorial was the observation of positions of Comet 1864 and
Comet Encke in its 1865 apparition. The results were published in the
Monthly Notices of the Royal Astronomical Society. He then turned to
other work.
Smalley soon resolved to undertake the magnetic work for which
Scott, before, his resignation, had planned and obtained instruments
from the Kew Committee in England. On 1864, July 3, he wrote to the
Colonial Secretary expression, his wish soon to start the magnetic
survey, the object of which he said, “will be the determination of the magnetic
elements, viz. the Variation of the Compass — the Dip —
and the Intensity — in as many localities as possible “in order” to
construct a magnetic chart of this country comparable with those of
most countries… Since the latitude and longitude of every
station will be determined with as much astronomical accuracy as
portable instruments will admit, this survey may be looked upon as
affording much useful assistance to the Surveyor and the
Geographer”. Smalley said that
travelling in connection with this work would give him the
opportunity of inspecting and to some extent reorganising the work of
the meteorological stations. He got together two horses and camping
equipment for himself and two assistants and made arrangement for
telegraphic exchanges of time signals between the Observatory and his
observing posts. Leaving Russell in charge of the Observatory in
January and February of 1865 he travelled in parts of the State north
of Sydney working twelve stations, to several of which Russell
records having sent time signals. In reporting this work on his
return Smalley said that be hoped soon to do some more in the
vicinity of Sydney. He was absent from the Observatory on several
subsequent occasions on this work. An iron free building in which to
carry out periodical determination of the magnetic elements at the
Observatory was built in 1866. Unfortunately only the results for
Sydney, where the work continued for many years, have ever been
published.
Smalley was responsible for beginning systematic recording of
tides in Sydney Harbour and in a letter 1864, September 14, to the
Colonial Secretary about building work needed for the Observatory, he
included a request for “a wooden shed
for a tide gauge in some available position in the Harbour probably
the Eastern [pg.12] extremity of Goat Island” however Fort Denison was selected and
before his report to the Observatory Board in 1866, August 24, the
automatic recordings were being taken regularly, as they still are.
The work on the tide gauge sheets is mentioned from time to time in
the diary kept by Russell and in letters to Smalley during his
absences. At this time Smalley was a member of the harbour Commission
frequently meetings of which were attended by him for a time from
1866, January 2, onwards.
Under Smalley’s direction the
meteorological work was continued. He arranged telegraphic connection
to the Observatory for the communication of meteorological
observations each day as well as for the longitude work in New South
Wales. At one stage he apparently thought of curtailing this work but
in November, 1869, he prepared a circular letter asking for volunteer
observers, in which he said, “at the
request of the Agricultural Society of New South Wales I am about to
establish an extensive series of stations in different parts of the
colony”. The observers were be issued
with instruments and forms for the recording rainfall evaporation,
maximum and minimum temperatures and wind at an observation to be
made at 9 a.m. each day. This led immediately to the establishment of
additional stations of which listed in a paper laid before the
Legislative Assembly in March, 1870. In September, 1868, he arranged
for the reading of earth temperatures at Observatory down to a depth
of twenty feet. The reading of these thermometers was carried on for
many years and published among the meteorological results.
Soon after his arrival Smalley joined and became an active member
of the Philosophical Society of New South Wales. Suggestions made by
him led to the change in designation to the Royal Society of New
South Wales of which became Vice President from 1867 to 1870. Among
the five papers published in his name by Society those on “Encke’s Comet
” and “Mutual Influence of Clock Pendulums” are the most interesting. It is interesting
that in his opening address at the meeting on 1868, June 3, he
expressed the“ hope that “future ladies will not only grace with their
presence the conversations of this Society but will sometimes attend
the ordinary meetings”. This was only
sixty years before women were admitted to membership of the
Society.
In January, 1867, Smalley received a letter from Charles —
later Sir Charles Todd, Observer and Superintendent of Telegraphs in
South Australia, after which arrangements were begun for fixing the
boundary line between the Colonies of South Australia and New South
Wales. Exchange of time signals for this purpose took place in May
between Todd’s observing station on the
boundary and the observatories in Sydney and Melbourne. In November,
1868, Smalley and Todd meet at Wentworth and had the boundary
permanently indicated by “a brick
pyramid 13 feet 6 inches high and 5 feet 6 inches square at the
base… erected on the slope of the scarp forming the limit of
the Murray floods”.
In a long letter to the Chief Secretary in 1865, August 10,
Smalley advocated, for purposes of geodetic surveying, the
measurement of a baseline of an arc of the meridian and the
establishment of a network of astronomically determined positions.
This would “serve as a basis for the
future operations of the surveyor is carrying out a new and complete
triangulation of New South Wales.” and
afford “new and valuable data for the
solution of the problem....of the of the earth”. Smalley was instructed in January 1868, to
go ahead with measurement of a base line for triangulation and after
conferring with the Surveyor General and obtaining reports from
surveyors in various localities selected for it near Lake George.
[pg. 13]
The remainder of Smalley’s life was
devoted to this work which proved full of difficulties. The ship on
which came some instruments borrowed from England took fire and had
to be scuttled in the Harbour and although the instruments were
recovered there was much delay in having them cleaned and repaired.
Transport was not well developed and difficulty was experienced in
getting heavy material is to the site. On one occasion one of his men
who had to go up from Sydney said that if he had to pay his own
expenses he would buy a horse to ride up as it would be cheaper, and
at another time Smalley, in a letter to the man he left in charge at
Lake George, remarked, when he was sending cheques, “I have crossed them all in consequence of
the sticking up lately of the mail and I do not like to send too much
at a time.”
Unfortunately, the fluctuating level of the Lake proved
troublesome and although the work was almost completed by Smalley the
line had afterwards to be moved to a higher level and remeasured
under the direction of the Surveyor General.
Apparently Smalley took very seriously the programme which had
been suggested by Airy when he was appointed and in planning his work
he always showed that he appreciated the contribution that the world
should make either to science or to the advancement of the community
being in some ways ahead of his time. However he was unfortunate
inselecting those tasks which, with his small resources and staff,
necessarily kept him away from the Observatory. The worry of this,
his rather poor health and the difficulties of the Lake George
position appear to have affected him. The cordial relations which
existed between Smalley and Russell are apparent in the tone of the
letters between them when Smalley was absent and Russell managed the
Observatory and looked after some of Smalley’s family affairs. Smalley took ill in 1870,
and his illness lasted until he died on July 11. At the time of his
death he was 48 years of age.
Last Update : 14th November 2012
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