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During 18 th century in New Spain, the strong link between religion and science hindered scientific growth. Conservatism and scholasticism pervaded educational institutions. Within this restricted context, a scientific community conformed mainly by creoles fulfilled their desire and need to know more as they had access to European books, which allowed erudite leading figures, such as Dr. José Ignacio Bartolache y Díaz de Posada, propel innovative ideas in medicine and pharmacy. Dr. Bartolache was considered sacrilegious and scandalous by the ecclesiastical authorities of that epoch. He favored the performance of human body dissections to improve medical education, as well as the anatomical proposals of Vesalius against Galeno's classical anatomy. He contributed to the dissemination of knowledge as he created the first medical magazine in the American continent: El Mercurio Volante (The Flying Mercury); he also printed medical pamphlets and flyers, some of which were published in Nahuatl and Spanish, as the prescriptions for martial pills, reformulated by himself. Physician ahead of his time, he was characterized by his professional humanism and the comprehensive treatment of patients; he emphasized the rational use of medications, without distinction of social class. His sensitivity allowed him to bring medical knowledge and treatment of illnesses closer to the most vulnerable. Another of his contributions, ahead of his time, was the recognition he gave women for the intelligence and ability they showed, equal to men, when accessing education.

Here, two papers are presented, which constitute the first reports of surgical procedures in Mexican children performed at the 19 th century. The two publications refer to surgical operations for the extraction of bladder stones. At that time, there was no anesthesia, so part of the description alludes to the suffering of the patients and the operative difficulties. The first case, is referred to as a lithotomy in a 17-year-old girl, performed by surgeon José Victoriano Guerrero in Guadalajara in 1822. The publication is not an academic report, but a pamphlet written as a gift to Emperor Augustin I to celebrate his ascension to the throne. The second work, is a lateral lithotomy in a 5-year-old boy, published by Dr. Luis Jecker in the first issue of the Periódico de la Academia de Medicina de Mégico in 1836., (Copyright: © 2018 Permanyer.)

During the last decades of the 13th century, in the midst of the shaping and medicalization of the new Kingdom of Valencia, the authorities and citizens envisaged the role that physicians could have in clarifying violent deaths. The first circumstance that compelled judges to resort to physicians was the possible poisoning of an individual, given that they could contribute to elucidating the truth with their expert knowledge. They were even requested to use post-mortem dissection if necessary for this purpose. In reality, physicians were conscious of their limitations in this field and the need for them to act with caution.

In 1895, Rafael Lavista founded the Museum of Anatomopathology at the Hospital de San Andrds in Mexico City, for the purpose of preparing and preserving anatomical pieces useful for the study of different diseases. Porfirio Diaz officially inaugurated the Museum in March 1896, but in June 1899 it was renamed as the Instituto Patológico Nacional. During its four years of activity, a variety of illnesses were studied, including tuberculosis, which spurred great interest among Museum personnel because of its high incidence. This text examines the labors developed at the Museum of Anatomopathology in relation to tuberculosis, discusses the researchers involved, and reviews the articles published in the Museum's journal: Revista quincenal de anatomía patológica.

The sense of the real, or the material - the dead body - as an inextricable part of the sacred does not disappear in the secular environment of the nineteenth and twentieth centuries. This article analyzes specific humanitarian narratives centered on the practice of autopsy and mummification, in which the traces of Catholicism act as a kind of spectral discourse of the imagination, where the real is configured in forms of the uncanny, the monstrous or the sacred.

Almost 250 years ago the autopsy of Agustin de Ahumada y Villalon was performed by Domingo Russi, Chief Surgeon at the Royal Hospital for Natives in Mexico City. This situation will be unimportant if the former wasn't the 42nd Viceroy of New Spain; his autopsy showed a situs inversus totalis, and probably this is the first scientific report of such malformation. For many years the report by Mathew Baillie (1761-1823) of an autopsy with the same findings as the first of its kind was believed, but actually the former almost three decades earlier was performed. In 1688 Jean M. Mery (1645-1722) at the Paris Academy of Medicine gave a talk reporting autopsy findings of the same malformations. Some aspects of the life of both personages are described, the autopsy report is showed and a short history about postmortem studies are mentioned mainly those made in Spain and New Spain. Through many centuries a very close relationship has been kept and medicine has not been the exception, in the field of human pathology in the middle third of the 20th century a distinguished pathologist, Dr. Isaac Costero-Tudanca, migrated to Mexico and gave flowering to pathology and a great generation of Mexican pathologists was generated headed by Dr. Ruy Perez-Tamayo.

Toward the end of the 18th century, clinical diagnosis in medicine shifted its focus from reliance on symptoms, which translates to subjective experience of illness, to signs, objective manifestations of pathologic changes. Several techniques were developed to elicit signs in clinical practice, and Laennec used them routinely. He palpated and prodded his patients to get an idea of changes in internal organs. He also applied his ear directly to his patient's chest to hear their heartbeat. On one occassion, he was unable to use these techniques and had the happy occurrence of rolling up a notebook to hear his patient's chest. This led him to hear a great number of new sounds. Through detailed observations, he was able to describe, classify, and correlate these sounds with autopsy findings, thus creating a new semiology of chest diseases. In this essay explore how in which Laennec created his instrument and system of signs of chest diseases, and how he was able to transmit his inventions to his colleagues.