as well as English—that there are possibilities in chemistry not dreamed of in their philosophy.
The need of a laboratory was fully appreciated by Mr. Z. S. Durfee, and in the spring of 1863 he secured the services of Mr. Emil Schalk, a native of Germany, and a graduate of the École Centrale of Paris, as chemist. On his arrival in Detroit, at the request of Captain E. B. Ward, he accompanied an exploring party to northern Wisconsin. The result of this expedition was the discovery of a number of deposits of excellent iron ore.
On Mr. Schalk's return in October, 1863, he commenced some original investigations with a view to determine the influence of nitrogen upon steel, which promised to develop very interesting and valuable results; but, unfortunately, circumstances for which
Fig. 64.—Chemical Laboratory at Wyandotte.
he was in no way responsible caused his resignation in December, 1863, before they were completed. Of Mr. Schalk's abilities I had the highest estimation, and I very much regretted his departure from Wyandotte.
I will now describe the arrangement of the laboratory. The main building shown in the plan (Fig. 64) was about twenty-four feet square; it was divided by a partition into two rooms, A and B, of equal size, and each about eighteen feet high. At the rear of this building was a lean-to shed, C; d is an entrance to this shed from without; x, a door communicating with A; and y is the main entrance to the building. The room A was used for general analytical work, and was provided with furniture and
