It reports on the study of blood groups in 800 natives of the central Peruvian Andes, held in the ABO, MNSs and Rh-Hr systems. Namely the salient features are highlighted: a high percentage of group O, almost no subject Rho (D) negative, relatively high percentage of Rz (CRE) type and prevalence of N. M factor on a brief comparative analysis is made between data obtained in the present study and encontrads other native American groups, highlighting the similarity between them. The existence of the A2 factor is discussed.

It has made the study of the processes of formation and blood destruction, as well as other related phenomena with the pathophysiology of anemia Carrion in 28 patients.

Se ha realizado estudios de médula ósea en 9 recién nacidos y 9 infantes de una semana de edad, de las grandes alturas. Dichas investigaciones se efectuaron a dos niveles de altitud: a 14,900 pies (Morococha) y a 12,250 pies (La Oroya). De los resultados obtenidos se deduce que existe una hiperplasia de los elementos de la serie roja, que no es, sin embargo, significativamente mayor que la encontrada en recién nacidos de nivel del mar. Al cabo de una semana de ocurrido el nacimiento, se aprecia una inhibición de la actividad eritropoyética, que no alcanza un grado tan bajo como el observado en infantes del nivel del mar.

He spent the period called romanticism, especially prevalent in Germany, took the Comte positivism boom. When Comte proclaimed champions of their dominion, appeared epochal book Virchow: Die cellular pathologie work patiently drawn and pointing at a significant milestone medicine because the disease know all current drift in it. As with all great discovery, Virchow was not accepted immediately, but it took a few years, fewer than expected Harvey to incorporate the scientific expertise.

Cuando se hace la evocación de una de las más apasionadas investigaciones que se han realizado en el Perú, cual es aquella que se hizo sobre la Verruga Peruana, sobresale con nítidos caracteres el nombre de ALBERTO BARTON, descubridor del germen causante de esta enfermedad

Cuando se hace la evocación de una de las más apasionadas investigaciones que se han realizado en el Perú, cual es aquella que se hizo sobre la Verruga Peruana, sobresale con nítidos caracteres el nombre de ALBERTO BARTON, descubridor del germen causante de esta enfermedad

The relationship between man and the environment should be a matter of careful scientific research. On the physiology and acclimatization in the tropics and atmospheres quality work Castellani, Dili, Adolph and collaborators, Mills and Lee, are worthy of note: as well as important events during the war, the United States, Australia, etc., the literature does not fit within the terms of this contribution.