ἪΡ 
RESEARCHES IN SCIENCE. Xxiii 
_ Mr. Thomas Stevenson.—On the various niodes of constructing Sea Walls, 
and the actual state of knowledge as to their power of resisting the forces to 
which they are exposed. 
Mr. 1. Whitworth.—On his Experiments for the purpose of constructing 
Accurate Standards of Measure, 
Dr. Hugh Cleghorn, Professor Royle, Messrs. R. Baird Smith, and R. 
Strachey, H.E.I.C.S.—On the probable effects, in an ceconomical and physi- 
cal point of view, of the Destruction of Tropical Forests. 
Researches, §c. 
That the Committee on the influence of Carbonic Acid on the growth of 
Ferns be requested to continue their investigations. 
That Dr. Percy and Professor Miller be requested to continue their re- 
searches on Crystalline Slags. 
That the Committee on Shooting Stars and Auroral Phenomena be reap- 
pointed. 
That the Committee on the Instrumental Measurement of Earthquake 
Waves be reappointed. 
_. That the Committee of superintendence of the Kew Observatory be con- 
tinued. 
Miscellaneous. 
That the Committee of Members of Legislature, who are also Members 
of the British Association, who were requested to watch over the interests of 
Science, and to inspect the various measures which might from time to time 
be introduced into Parliament, likely to affect such interests, be reappointed, 
and that the further steps to be taken in this matter be referred to the 
Council. 
That the Presidents of the several Sections be requested, with such assist- 
ance from the Members as they may find desirable, to revise the recommen- 
dations which have from time to time been adopted in reference to the 
branches of Science which are taken into consideration by those Sections 
᾿ respectively, and to communicate thereon with the Assistant General Secre- 
tary previous to the next Meeting. 
That a Committee, consisting of Sir John Herschel, The Aaweedomer 
Royal, Prof..Forbes and Prof. Powell, with power to add to their number, 
be empowered to communicate with the Astronomers of Pulkowa on the 
observations to be made at the next approaching total Eclipse of the Sun, 
July 28, 1851, and to draw up suggestions for the guidance of observers 
generally. 
That the Memorial of M. Kupffer be printed for circulation among the 
officers. 
It appearing that two recommendations for Reports, viz. On the Anatomy 
and Physiology of the Nervous System, and on the History and Advances 
of Vegetable Physiology, which had been adopted by the Committee of Sec- 
tion D, had not been presented to the Committee of Recommendations, it 
was directed that these be communicated to the Council at its next Meeting: 
_ the following are the terms of these Resolutions :-— 
“ That Professors Sharpey, Goodsir and Allen Thompson, and Dr. Laycock, 
with power to add to their number, be requested to prepare for the next 
Meeting of the Association a Report on the History of, and Advances in our 
knowledge of the Anatomy and Physiology of the Nervous System, from the 
date of the last Report on this subject. 
“That Dr. Lindley, Arthur Henfrey, F.L.S., and Dr. Lankester, with 
