6 4 EMPLOYMENT PSYCHOLOGY construction of the room makes it impossible to give a rigid surface to a hinged table, and a table on four legs is therefore being secured. The portable room is further fitted out with devices providing for the necessary com bination of electric currents. Its equipment includes an electric fan, a necessary adjunct to a room otherwise de void of ventilating mechanisms. In this laboratory only such apparatus is carried as is necessary for the experiment in hand. This apparatus is stowed in a large but lightly constructed chest. In this way it can easily be carried around or stored. The bulk of the apparatus is kept in a permanent laboratory where new apparatus is constructed and tried out before it is sent out for use in the portable laboratory. As was expected, the use of this room provoked some scoffing and ridicule among the shop men and their over seers at the outset. All kinds of queer names were given to it by the men such as “pill box”, “monkey cage”, “star chamber”, etc. However, it was never abused and the experience which those who were examined had with this room tended to transform their contempt into cu riosity and often into admiration. “Do you know,” said one man who had been given tests, “I have much more respect for that place in there (pointing to the portable room) than I did before. At first I thought it was a lot of monkey business, but it got me. It made a monkey of me all right. It showed me that I wasn’t quite as smart as I thought I was.” After the expiration of a few days, the laboratory is taken as a matter of course in the shop where it has been set up. No one pays any more attention to it than to the permanent shop fixtures. This has been the case wherever the room has been used. The first few days provoke a