6 Annversary Address by Sir William Huggins. [Nov. 30, 
our Fellows in 1873, and served on the Council in 1877-1878. On the 
retirement of Sir William Bowman, he was elected Honorary Secretary of 
the Royal Institution. Honorary degrees were conferred upon him by the 
Universities of Oxford, Cambridge, Durham, aud Montreal. In 1889 Queen 
Victoria bestowed upon him the honour of a baronetcy. 
George Johnston Allman was born in Dublin in 1824. He entered Trinity 
College at an early age, and at the honour degree examination, in 1843, he 
obtained Senior Moderatorship and a gold medal in mathematics. A few 
years later he was elected to the Professorship of Mathematics in Queen’s College, 
Galway, a post which he held for nearly forty years, until his retirement in 
accordance with the age limit. His most important works were a paper, “ On 
some Properties of the Paraboloids,” and a series of papers on the history of 
Greek mathematics, which formed the basis of his celebrated book “Greek 
Geometry from Thales to Euclid.” He was elected a Fellow of the Society 
in 1884. 
The name of Dr. Isaac Roberts will always be associated with the 
photography of the heavenly bodies. He early showed his love for physical 
science. His first scientific paper was on the wells and water of Liverpool, 
where he resided ; and in the following year, 1870, he was elected a Fellow 
of the Geological Society. Other papers followed on underground waters, 
especially with respect to their oscillations in porous strata. He soon directed 
his principal attention to Astronomy, and erected an observatory near 
Liverpool. At first he contemplated photographing the whole northern 
heavens, but when an astrographic chart and catalogue for both hemispheres 
were undertaken by an international co-operation of Observatories, with 
great prescience he decided to devote himself to photographing star-clusters 
and nebule. Finding the neighbourhood of Liverpool unfavourable for such 
work, after a long personal examination of various sites, he erected an 
observatory on Crowborough Hill, where, during thirteen years, he secured the 
splendid series of astronomical photographs, bringing to light a wealth of 
unsuspected detail, which have largely aided in the recent extension of our 
knowledge of nebulee and star-clusters. Two volumes containing reproductions 
of these photographs were published by Dr. Roberts at his own expense, and 
widely distributed among astronomers. He was elected to our Fellowship in 
1890. In 1892 Trinity College, Dublin, conferred upon him the honorary 
degree of D.Sc.; three years later he received the gold medal of the Royal 
Astronomical Society. 
To his many friends the sudden death of Sir Clement le Neve Foster came 
as a very painful shock. He was educated in France, and obtained the degree 
