This Portuguese-language book is a collection of articles on scientific criticism, focused on analyzing the validity and accuracy of scientific claims. The author, a Portuguese-born doctor and journalist living in Brazil, provides critical analysis of specific scientific claims made in newspapers in São Paulo in 1902. This book is an important resource for scholars of scientific criticism and the history of science journalism.

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.

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