[ 1 ] 2G 



attended with additional expense, and cannot, in all cases, be adopted. 

 Should laro-e audiences continue, it may be well to provide a larger 

 lecture room in the main building, and by removing the seats from the 

 present lecture room, convert it into a museum of apparatus. This change, 

 if thought advisable, can be made at very little, if any, additional ex- 

 pense, since the present wood Vv^ork of the interior of the main building, 

 is to give place to a fire proof structure, which will admit of being 

 arranged as a lecture room. Indeed, the original plan contemplated a 

 room of this kind in the main building, but the arrangement of it was 

 such as to seat scarcely more than the room at present used. 



Many enquiries are made as to the publication of these lectures. In 

 some cases, reports of them have been given in the newspapers, and it will 

 be advisable to extend this practice to all : but the pul)lication, in a sepa- 

 rate form, of lectures, which in many cases, are not written out, and not 

 intended by their authors, as additions to knowledge, would be attended 

 with much expense, and little useful effect. The institution, in several 

 instances, is doing better service, by publishing, in full, the original re- 

 searches, on which the lectures are based. The papers of Professor 

 AsC'^'Ssiz, of Professor Harvey, and one of Lieutenant Davis, are of this 

 character, and will be given to the world, through the Smithsonian Con- 

 tributions. 



The following is a list of the Titles of Lectures given he/ore the Institution 



during; the last session of Congress, with the JVajnes of the 



distinguished Gentlemen by ichorn they were delivered: 



A single lecture on Holland ; by the Rev. Dr. George W. Bethune, of 

 Brooklyn, New York. 



A course of lectures' on the relations of Time and Space — the vastness 

 of the Visible Creation — and the Primordial Arrangement of Ex- 

 isting Systems ; by Professor Stephen Alexander, of Princeton, 

 New Jersey. 



A course of lectures on Science applied to Agriculture; by Professor J. F. 

 W. Johnston, of the University of Durham, England. 



Two lectures, one on the tendencies of Modern Science, and the other on 

 the Spirit of the Age; by the Rt. Rev. Bishop Alonzo Potter, of 

 Pennsylvania. 



One lecture on the Ability of the Individual to Promote Knowledge; by 

 the Rev. John Hall, of Trenton, New Jersey. 



A course of lectures on the Unity of the plan of the Animal Creation ; 

 by Professor Louis Agassiz, of Cambridge, Massachusetts. 



A course of lectures on the Tides of the Ocean and their Geological Re- 

 lations; by Lieutenant Charles Henry Davis, of the United States 

 Navy. 



A course of lectures on IMarine Algffi or Sea Weeds, and also on the 

 Morphology of the Vegetable Kingdom; by Professor William H. 

 Harvey, of the University of Dublin, Ireland. 



Two lectures, one on the Origin and Growth of the Union during tha 



