“_Strength of Forearms._ The subject, while holding the dynamometer so that the dial is turned inward, should squeeze the spring as hard as possible, first with the right hand then with the left. The strength of the muscles between the shoulders may be tested with the same instrument. The subject, while holding the dynamometer on a level with the chest, should grasp it with handles and pull both arms from the centre outward. “_The total strength_ is ascertained by multiplying the weight by the number of times it has been raised (push up and pull up), to this product we add the strength of hands, legs, back, and chest. The result is the total strength of the man. In some cases the product obtained by multiplying the weight by push up and pull up is divided by ten to reduce the size of the figures. We have not done so here. “The run, vault, and ladder tests are not figured in. The lung capacity is also omitted from the final figures.” * * * * * The following tables furnished by Dr. Anderson and Dr. Callahan give (1) the _measurements_ of the eleven men who completed the experiment, taken on October 12, 1903, and April 2, 1904. For comparison are also given measurements of Yale College students, athletes, etc. (2) _Strength_ or dynamometer tests, _i. e._, the first test taken in October and the final test taken in April, 1904, together with Columbia University strength tests for comparison. (3) A series of eleven tables giving for each man the individual strength tests, two or three each month, taken during the stay of the detachment in New Haven. Study of these individual results is quite interesting, since it shows very strikingly the gradual gain in strength of the men, and at the same time illustrates how temporary conditions, bodily or mental, may influence a record of this character, more noticeable in some individuals than in others. Mental stimulus, as is well known, counts for much in the manifestation of muscular power, but the neuro-muscular mechanism depends for its highest efficiency upon the nutritive condition of the tissues as much as does the muscle tissue alone. In the obtaining of a strength test, it is usually found that the best results are recorded when there is competition among the men; _i. e._, under the influence of an outside stimulus. MEASUREMENTS. (OCTOBER 12—APRIL 2.)