ESTUDIOS HELMINTOLOGICOS DE LA REGION ONCOCERCOSA DE MEXICO Y DE LA REPUBLICA DE GUATEMALA TREMATODA II PRESENCIA DE PARAGONIMUS EN RESERVORIOS NATURALES Y DESCRIPCION DE UN NUEVO GENERO HELMINTHOLOGICAL STUDIES IN THE ONCHOCERCIASIS REGION OF MEXICO A

Abstract

Discussion of the methods recommended for the benefit of the coffee in several Central and S American countries, followed by the description of a modification introduced by the author and based on precipitation of the pectins in form of Ca pectate