The article provides summaries of several medical and scientific publications. It discusses mumps synovitis without orchitis and the relevance of newer tests for rheumatoid factors, noting that the reference book is useful for quick factual access. The supplement on thyroid tumors by WA Meissner, published in 1984, covers advances in thyroid histopathology and is described as an essential resource for histopathology departments. The book "Current Issues in Toxicology" addresses carcinogenicity testing and genetic toxicology, with some criticism regarding its depth and focus. The second volume of "Histochemistry. Theoretical and Applied" is noted for its detailed coverage of histochemical methods, though it has some formatting issues. "Histochemistry in Pathology," edited by M Isabel Filipe and Brian D Lake, is a collection of articles aimed at pathologists, promoting the integration of histochemistry into diagnostic practices. A correction is also mentioned regarding a formula in a previous issue.The article provides summaries of several medical and scientific publications. It discusses mumps synovitis without orchitis and the relevance of newer tests for rheumatoid factors, noting that the reference book is useful for quick factual access. The supplement on thyroid tumors by WA Meissner, published in 1984, covers advances in thyroid histopathology and is described as an essential resource for histopathology departments. The book "Current Issues in Toxicology" addresses carcinogenicity testing and genetic toxicology, with some criticism regarding its depth and focus. The second volume of "Histochemistry. Theoretical and Applied" is noted for its detailed coverage of histochemical methods, though it has some formatting issues. "Histochemistry in Pathology," edited by M Isabel Filipe and Brian D Lake, is a collection of articles aimed at pathologists, promoting the integration of histochemistry into diagnostic practices. A correction is also mentioned regarding a formula in a previous issue.