Brass stereotaxic apparatus, English, c. 1905.

Stereotaxic apparatus, brass, used by Sir Victor Horsley and Richard Clarke, made by Swift and Son, London. The following two items are connected with this object: 1) Sir Victor Horsley's laboratory notebook 1904-1905 containing records (written and photographic) of experiments on electrolysed animals; 2) Graticule 2-dimensional indicator, brass and wood, made by H. T. Goodwin, London, c. 1905