Bevat: 1. Franciscus Cornelis Donders and his time / by M. C. Colenbrander. 2. On the anomalies of accomodation and refraction of the eye / by F. C. Donders. 3. Address delivered at Utrecht on May 28, 1888, on the occasion of the presentation of the charter of the Donders Foundation. Verkorte reprint van: Donders' "On the anomalies of accomodation and refraction of the eye" uitgereikt aan deelnemers aan het XXII International Congress of Physiological Sciences

Bevat: I. On the speed of mental processes. (pp. 412-431) II. Two instuments for determining the time required for mental processes. (pp. 432-435) III. A short description of instruments and apparatus belonging to the collection of the physiological laboratory and the Dutch Ophthalmic Hospital (pp. 436-438)