263 



monium is the general prototype, the hydrogen of that volatile base 

 being replaced to the extent of one, two, three, or four equivalents, 

 by a multitude of elementary and compound radicals. Your method, 

 also, of introducing these radicals into the constitution of ammonia, 

 by the agency of the bromides and iodides of the radicals, has been 

 found to admit of extensive application, and has very materially 

 assisted in the general progress which organic chemistry has made 

 since this method was made public. 



DR. NEIL ARNOTT, 



I have much pleasure in announcing, that a Rumford Medal has 

 been awarded to you, " for your construction of a new Smoke-con- 

 suming and Fuel-saving Fire-place, with accessories, ensuring the 

 healthful warming and ventilation of houses, lately described in the 

 Journal of the Society of Arts (May 12, 1854), and for your various 

 contributions to the elucidation of the principles and improvement 

 of the practice of heating and ventilation." 



The President then called upon Dr. Sharpey to read the following 

 obituary notices of some of the deceased Fellows : 



EDWARD FORBES. In the melancholy list of those who have passed 

 away from among the Fellows of this Society, there is no name whose 

 mention will awaken a more general and profound feeling of regret 

 than that of EDWARD FORBES. Some leave us full of years and 

 honours, their work in this world finished, and its rewards enjoyed ; 

 the sphere of action of others has been so limited, that their absence 

 is felt within only a narrow circle ; but in Edward Forbes we have 

 to lament one whose vigorous intellect had but just attained the 

 ripeness of the prime of life ; who, after rising with almost unex- 

 ampled rapidity to the height of his ambition, sank within sight of 

 a future more brilliant than his past ; and whose loss to the brethren 

 in science who looked up to him, to the University whose hopes 

 were centred in him, and to the friends of all classes and pursuits 

 who loved him, is truly irreparable. 



A native of the Isle of Man, and born in the year 1815, Edward 

 Forbes exhibited at a very early age that aptness for and attach- 



VOL. VII. 2 D 



