RT Journal T1 HEart disease and pregnancy JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1939 FD April 1 VO 112 IS 13 SP 1290 OP 1290 DO 10.1001/jama.1939.02800130074032 UL http://dx.doi.org/10.1001/jama.1939.02800130074032 AB This small book contains considerable information, both pertinent and irrelevant; many of the illustrations and much of the text, however, present merely the fundamentals of heart disease and might well be omitted.The authors give a valuable analysis of the data on 350 cases of their own and compare them with series already published by McIlroy and Rendel in 1931 (200 cases), Carr and Hamilton in 1933 (500 cases) and Watson in 1933 (240 cases). Of the authors' series 89.7 per cent were rheumatic, 4 per cent were congenital and 6.3 per cent were miscellaneous. Ninety-five patients had a trivial to slight amount of heart disease and three of these (3.2 per cent) died. These were called class 1. The other 284 had more severe heart disease, and of these twenty-two (7.8 per cent) died. These were called class 2. Thus there was a total mortality of twenty-five of the