Titchener's Photo Album - continued...

J. D. Brown, Camden, New Jersey, USA

J. D. Brown was employed by the firm of Clay and Torbensen in Camden, New Jersey in the early 1890s. He made instruments for J. McKeen Cattell and George S. Fullerton at the University of Pennsylvania as early as 1892 as a worker for Clay and Torbensen. He appears to have set up a company of his own devoted to the instruments designed and used by J. McKeen Cattell. He also made instruments for Lightner Witmer at the University of Pennsylvania. Brown sent his price list and photographs to Titchener in October, 1895.

Brown's Sound Treated Hipp Chronoscope. The wooden covering of the clockwork replaced the fragile glass dome and reduced the noise of the Hipp chronoscope

A separate catalogue by Brown gives additional information on the instruments depicted. Links to the catalogue description number and page is given below for each item. Brown's catalogue contains some hand written updates. It was given the author by Karl M. Dallenbach, one of Titchener's doctoral students and a designer of instruments. This is certainly the catalogue Brown sent to Titchener since some of the photos are described in hand written entries in the updated catalogue.

• Second's pendulum (right) and Temperature cylinders (left) (See catalogue, Nr. 15 (second's pendulum) and Nr. 26 (temperature cylinders))
• Witmer's knee-jerk apparatus (top) and Witmer's color mixer (bottom) (Nr. 27 (knee jerk apparatus) and Nr. 21 (color mixer))
• Cattell's pendulum chronometer (top) and Cattell's visual distance perception apparatus (bottom) (Nr. 22 (chronometer) and Nr. 9 (distance perception apparatus))
• Cattell's meter wheel tachistoscope (top), Temperature Stimulators (bottom left), and Cattell's Algometer or Pain stimulator (bottom right) (Nr. 2 (tachistoscope), Nr. 11 (temperature stimulators), and Nr. 10 (algometer))
• Time and extent of motion apparatus (top) and Spatial justments ruler (bottom) (Nr. 3 (time and motion apparatus) and Nr. 8 (ruler))
• Contact switches (top left and right) and Spatial judgment apparatus (bottom) (Nr. 23 and 24 (contact switches) and Nr. 4 (spatial judgment apparatus))
• Pen carriage for Witmer's Chronograph (top) and Witmer's Chronograph (bottom) showing pen carriage, driver mechanism and weight (Nr. 25 (pen carriage) and Nr. 20 (chronograph))
• Witmer's Chronograph (left), set vertically and Cattell's falling pendulum tachistoscope (right) (Nr. 20 (chronograph) and Nr. 5 (tachistoscope))
• Hipp Chronoscope with sound treatment (left, see also above) and 25kg Dynamometer (right) (Nr. 19 and Nr. 6 (dynamometer))
• Heavy weights (left), Hooded lamp (center), and Light weights (right) (Nr.13 (heavy weights), Nr. 14 (lamp), and Nr. 12 (light weights))

F. Buechi. Berne, Switzerland

Adam Ferdinand Buechi (1843-1913), a trained Feinmechaniker and optician, founded his firm in Berne in 1871. Initially repair work of all kinds, the production of small apparatus and electrical installations were his main business. In the 1880s, Buechi began to focus on optical devices and glasses. When his son, Eduard Friedrich Buechi (1870-1926) entered the firm sometime in the 1890s, a new section on instrumental optics was founded. In 1900, the Buechi firm had the exclusive licence to sell Leitz microscopes and other Leitz products in central Switerzland. Buechi also supplied physiological models, particularly brain models (center and left of page) as early as 1893 (description).

Buechi's Phantom of the course of fibers of the human brain
according to Christoph Aeby