Prof. Macalister, The tendency to fusion , etc. 
207 
The tendency to fusion shown by the suboccipital vertebrae. By 
Professor Macalister. 
\Read 25 February 1907.] 
A series of ankylosed cervical vertebrae in which there was 
exhibited a progressive coalescence of the several parts of the 
occiput and atlas, and of the axis and third cervical vertebra. The 
stages ranged from a simple adhesion to a complete unification. 
In one atlas there was a perfect neurocentral articulation between 
the pedicle and the axial odontoid process on one side. 
Some points in the anatomy of the peripheral nerves. By 
E. Barclay-Smith, M.D., King’s College. 
\Read 25 February 1907.] 
Several specimens were exhibited to show that the contour, 
size and form of the nerve trunks of the body exhibited consider- 
able variation; that these variations were associated with (i) the 
physical conditions of the tissue traversed by the nerve, (ii) the 
displacements and strains to which the nerve trunk was subject; 
that the local enlargements which certain nerves exhibited were 
due histologically to (i)an accumulation of the intrinsic connective 
tissue in the nerve trunk, (ii) the presence of numerous Paccinian 
corpuscles embedded in the nerve fibre bundles of the nerve trunk. 
