Investigations have shown a marked likelihood that a patient with Klinefelter's syndrome is the father of a son, and it is not unlikely that he is also the father of another, now deceased, son.Owing to the relatively common finding of positive sex chromatin in male infants and the striking paucity of cases showing Klinefelter's syndrome, the present case is presumably not excessively rare.

No abstract

Subacute and chronic affections of the myocardium due to non-penetrating injuries have in the past been regarded as extremely rare. Traumatic rupture of the cardiac valves, papillary muscles, and chordc tendine are described in detail in most textbooks; yet isolated myocardial and pericardial lesions, though undoubtedly more common, are scarcely mentioned except in more recent manuals dealing with diseases due to trauma, such as those by Stern (1930), Brady andKahn (1937), and Spicer (1939). Papers by Beck (1935) and by Bright and Beck (1935)

Summary. A new method for determining the above‐mentioned constants evolved by V. JOHANSEN and I. OSCAR NIELSEN has been published. An exposition is given of the theory for oscillating systems of one degree of freedom known from physics. Tables and curves are calculated showing the amplitude‐and phase‐distortion caused by recording instruments of different degrees of damping influenced by varying relative frequencies. The relations between the degree of damping, the ratio of damping, the logarithmic decrement and the overshot have been calculated. The consequences for the choice of recording instruments for given purposes have been outlined. The consequences for the construction of suitable recording instruments have been pointed out. Methods for determining the natural undamped frequency and the degree of damping from forced and free vibrations have been given. The paper presents the general part of the theory for the elastic liquid‐containing membrane manometer.

A search of the old literature does not disclose any facts which would lead us to abandon Zuntz's theory modified in accordance with modern physicochemical requirements. CHAPTER XI FURTHER CONSIDERATIONS AND EXPERIMENTS ON THE NATURE OF THE COMBINATION OF C02 IN THE BLOOD, ILLUSTRATED BY THE "CARBONIC ACID COMBINATION" CURVEL. 276 THEORY OF THE HENDERSON-HASSELBALCH EQUATION 277 Table LI. With equation (171) With equation (172) With equation (180) Vols % Vols. % Vols. % Vols % mm. Hg C:°.2 PH, aH-x10-7 002 Diff. pH c2 Diff. Co Duff. 002 combined calc. calc. combined Vols. % calc. combined Vols. % combined Vol. % 1 2 3 4 5