Esta colección de trabajos científicos ofrece una visión única del estado de la investigación biológica en la Universidad de Madrid durante las primeras décadas del siglo XX. Los artículos tratan temas como la fisiología celular, la parasitología, la bioquímica y la genética. Es una lectura valiosa para aquellos interesados en la historia de la investigación científica en España.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.