Handbook of Anæsthetics

due to outgrowthis from the axis cylinders of the proximal and somatic nerves in the cat, and examining these nerves histologically some time after union has taken place. By using somatic and sympathetic nerves it is comparatively easy to determine to what extent the peripheral nerve is replaced by the proximal one. It is shown that in all cases the functional part of the peripheral nerve is provided by the proximal one, i.e., in a junction of the proximal end of the cervical sympathetic to the distal end of the hypoglossal nerve, the fibres of the hypoglossal nerve are replaced by sympathetic fibres. A detailed account of the experiments is given. The nerves used are the cervical sympathetic, hypoglossal, superior laryngeal, phrenic, glossopharyngeal, and facial, and each experiment is well illustrated by diagrams and photo-micrographs. The book is well worth the attention of all serious workers in neurology.