IS* Royal Society. 



Lieutenant Colonel Macdonald, son of the celebrated Flora Mac- 

 donald, besides many professional and other works, was also the 

 author of two papers in our Transactions for the years 1796 and 

 1798, containing observations vipon the diurnal variation and dip of 

 the magnetic needle made at Fort Marlborough in Sumatra, accom- 

 panied likewise by some observations >ipon their causes. 



Mr. Thomas Greatorex, the well-known musician, was the author 

 of a paper on the measurement of the heights of mountains. He 

 was a person of great modesty and simplicity of character, and pos- 

 sessed a knowledge of some branches of mathematics and of natural 

 philosophy which is rarely met with in the members of his profes- 

 sion. 



Sir Thomas Frankland, as long ago as the year 1795, was the au- 

 thor of a short paper in our Transactions on the welding of cast 

 steel and iron. 



Mr. Wm. Strutt of Derby was the author of those great improve- 

 ments in the construction of stoves, and in the economical generation 

 and distribution of heat, which have of late years been so extensively 

 and so usefully introduced in the warming and ventilation of hos- 

 pitals and pubhc buildings. He possessed a very great knowledge 

 of practical mechanics, and employed himself through the whole 

 course of a very active life in the furtherance of objects of public 

 utility. 



Dr. Parkinson, Archdeacon of Leicester, gained the highest ho- 

 nours at Cambridge, and was the author of a treatise on mechanics. 

 In his early life he was employed, in conjunction with Israel Lyons 

 and others, in the formation of the tables requisite to be used with 

 the Nautical Almanac. 



Dr. Sims was a very zealous cultivator of botanical science, and 

 continued for many years the publication of Curtis's Botanical Ma- 

 gazine. 



Dr. Ferris, besides other professional publications, was the author 

 of a work entitled " A General View of the establishment of Physic 

 as a Science in England." 



The Rev. William Holwell Carr was a gentleman of refined and 

 cultivated taste, and a liberal patron of die fine arts ; he has esta- 

 blished no slight claim upon the gratitude of his country by the be- 

 quest of his collection of exquisite pictures to the British Museum, 

 whose Council have thought it most adviseable, for their better pre- 

 servation and security, as well as for the furtherance of that gentle- 

 man's views in making such a magnificent present to the nation, to 

 deposit them in the British Gallery. 



The Earl of Darnley was a liberal patron of the Fine Arts, and a 

 zealous friend of all useful public institutions : and he gave a most 

 conviiicing proof of the interest which he felt in the promotion of 

 natural knowledge, by the formation and maintenance of a noble 

 collection of rare and curious plants and animals. 



Mr. Thomas Hope, the justly celebrated author of Anastasius, 

 and Dr. Magec, Archbishop of Dublin, author of the great work 

 upon the Atonement, are names not likely to be soon forgotten in 



the 



