lustre upon its annals. It has been questioned whether any foundation in the world, 

 however richly endowed, can boast such a record of original research and pregnant 

 discovery as that of the Royal Institution for the last hundred years. Upon the 

 work of its professors have been founded industries already gigantic, to the 

 development of which it would be rash to assign any limit, save such as may 

 be drawn by new triumphs of experimental research, as epoch-making as those of 

 the past. Yet the expenditure of the Royal Institution on the work in question 

 averages for the last century about ^"1,000 per annum; thus showing an efficiency 

 of stewardship which constitutes the strongest claim to generous support in the 

 future. Modern conditions, general as well as scientific, preclude the hope that 

 equality of output can be maintained, even by the most careful husbandry, upcn 

 resources as exiguous as those that have sufficed in the past. 



The Davy-Faraday Research Laboratory is a perfectly distinct though affiliated 

 institution, founded and endowed by the late Dr. Ludwig Mond, F.R.S., with the 

 object of providing opportunity and facility of research for persons who have cre- 

 dentials of Scientific Training and some experience in original investigation. 



PUBLIC LECTURES 



Intended to supply that which Books or Private Instruction can rarely afford 

 Experimental illustration and detailed descriptions of matters connected with 

 Science or Art. These Lectures usually comprehend a short Course for a juvenile 

 auditory at Christmas, and Six or more Courses before and after Easter; the 

 Season lasting from the middle of January to the middle of June. 



The Subjects of these Lectures are generally some of the different branches 

 of Inductive Science as Mechanics, Chemistry, Heat, Light, Electricity, Astronomy, 

 Geology and Biology, and sometimes on Literature, the Fine Arts, and Music. 



FRIDAY EVENING MEETINGS 



Of the Members of the Institution. These are held on every Friday evening during 

 the Session, and to them the Members have the privilege of introducing two 

 Friends, by cards. At these Meetings a lecture of one hour is delivered by some 

 recognised authority either upon some novel discovery, some recent development 

 of scientific speculation, or some fresh aspect of a social, literary, artistic, or scientific 

 problem. These lectures are illustrated, so far as the subject permits, by experi- 

 ments, diagrams, and lantern slides. Interesting and sometimes unique exhibits, 

 illustrative of some subject of current discussion, are arranged in the spacious 

 Library, on the same floor as the Lecture Room, which is at the disposal of 

 Members and their guests for social and conversational purposes, both before and 

 after the Lectures. 



Abstracts of the weekly Discourses, prepared by the Speakers, are printed in 

 the " PROCEEDINGS OF THE ROYAL INSTITUTION," copies of which are sent to 

 the Members." 



* Volumes I. to XX. (1851 to 1913), extra copies, price, to Members, from 75. 6d. and upwards; 

 to Non-Members, los. 6d. and upwards, each volume, bound. The numbers are sold separately. 



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