450 Proceedings of Boy al Society of Edinburgh, [july 18 , 
The Prize is to be given in recognition of original work in Physics, 
Chemistry, or Pure or Applied Mathematics. 
Evidence of such work may be afforded either by a paper pre- 
sented to the Society, or by a paper on one of the above subjects 
or some discovery in them elsewhere communicated or made, which 
the Council may consider to be deserving of the Prize. 
The Prize is open to men of science resident in, or connected with 
Scotland. 
The first award shall be in the year 1887, and shall consist of a 
sum of money. In accordance with the wish of the donor, the 
Council of the Society may on fit occasion award the Prize for work 
of a definite kind to be undertaken during the succeeding three 
years by a scientific man of recognised ability. 
Before entering on the last of the subjects of this evening’s 
meeting, it will interest you to learn that, heartily joining as we 
all do in the loyal and affectionate homage of the whole nation on 
the completion by the Queen of the 50th year of her happy and 
beneficent reign, the following Address has been forwarded to the 
Secretary of State for presentation, the arrangements not permitting 
its presentation by our President : — 
“ Madam, may it please your Majesty, — We, the President and 
Council of the Boyal Society of Edinburgh, humbly address your 
Majesty on this, the 50th anniversary of your Majesty’s illustrious 
reign, and desire to express, on behalf of the Society, their loyal 
attachment to your Majesty, and to the institution of the Crown, 
represented in the person of our present gracious and distinguished 
Sovereign. 
“ The Royal Society of Edinburgh was constituted in the year 
1782, for the promotion of scientific and literary research, by a 
Charter from King George the Third. In times past it has counted 
amongst its members many statesmen, and men of letters and 
science, who have discussed freely the public and political questions 
of the times. But on one subject there has happily been entire 
unanimity — the maintenance of the principle of constitutional 
monarchy as established in the British Empire under the guidance 
of your Majestv and your Royal predecessors. 
