This is the fourth volume of the collected publications of the Escudero Clinics, and serves to call attention to the enormous amount of high class scientific work being contributed in the schools of our sister republic.
The work opens with a detailed report covering about 150 pages of eight cases of Ayerzas' disease, the syndrome given rise to by sclerosis of the pulmonary arteries. The thoroughness and completeness with which these cases of "black cardiacs" were studied is commendable. Every means known to medical science was applied and the syndrome can now be stated to have been placed on a firm basis so that diagnosis should be made in every case. While many of the articles in the book are of this type, i. e., meticulously and carefully detailed case reports, they compare favorably with any that I have ever seen.
The article on hyperglycemia and that on gerodermia may