XIV 
FIFTH REPORT— 1835, 
On the state of our knowledge of the Strength of Materials, 
by Peter Barlow, F.R.S. 
On the state of our knowledge respecting Mineral Veins, bv 
John Taylor, F.R.S., Treasurer G.S., &c. 
On the state of the Physiology of the Nervous System, by 
William Charles Henry, M.D. 
i J _ 
On the recent progress of Physiological Botany, by John Lind- 
ley, F.R.S., Professor of Botany in the University of London. 
On the Geology of North America, by H. D. Rogers, F.G.S. 
On the philosophy of Contagion, by Wm. Henry, M.D., F.R.S. 
On the state of Physiological knowledge, by the Rev. William 
Clark, M.D., F.G.S., Professor of Anatomy, Cambridge. 
On the state and progress of Zoology, by the Rev. Leonard 
Jenyns, M.A., F.L.S., &c. 
On the theories of Capillary Attraction, and of the Propagation 
of Sound as affected by the development of Heat, by the Rev. 
John Challis, M.A., F.R.S., &c. 
On the state of the science of Physical Optics, by the Rev. 
H. Lloyd, M.A., Professor of Natural Philosophy, Dublin. 
On the state of our knowledge respecting the application of 
Mathematical and Dynamical principles to Magnetism, Electri¬ 
city, Heat, &c., by the Rev. William Whewell, M.A., F.R.S. 
On Hansteen’s researches in Magnetism, by Captain Sabine, 
F.R.S. 
On the state of Mathematical and Physical Science in Bel¬ 
gium, by M. Guetelet, Director of the Observatory, Brussels. 
The following Reports and Continuations of Reports have been 
undertaken to be drawn up at the request of the Association : 
1. On the progress of Electro-chemistry and Electro-mag¬ 
netism, so far as regards the Experimental part of the subject, 
by P. M. Roget, M.D., Sec. R.S. 
2. On the Connexion of Electricity and Magnetism, by S. H. 
Christie, F.R.S., &c. 
3. On the state of knowledge on the Phsenomena of Sound, 
by the Rev. Robert Willis, M.A., F.R.S. 
4. On the state of our knowledge respecting the relative level 
of Land and Sea, and the waste and extension of the land on 
the east coast of England, by R. Stevenson, Engineer to the 
Northern Lighthouses, Edinburgh. 
5. On the Zoology of North America, by J. Richardson, M.D., 
F.R.S. 
6. On the Botany of North America, by Jacob Greene, M.D., 
and Sir W. J. Hooker, M.D., Professor of Botany, Glasgow.. 
