A full century has passed since the sudden and tragically premature demise of Aleksandr Porfir'evich Borodin in 1887 at the age of 53, when he was following with phenomenal success the disparate careers of musician, composer, organic chemist, and pioneer in women's medical education. As a unique figure among the remarkable group of geniuses who suddenly appeared in Russia in the middle of the last century and explosively propelled that country into the mainstream of world culture in the arts, humanities, and sciences, it might have been expected that Borodin was the object of much research. There is no doubt that the Russian contribution to the amazing development of structural chemistry in the last century has tended to be underplayed, while that in the rest of Europe has received much more attention. One wonders, in particular, whether Borodin's name might not have appeared in the chemical pantheon, as have those of Mendeleev, Markovnikov, Menshutkin, and many other Russians, if the aldol condensation, which he was the first to discover and investigate, had been named the Borodin condensation. Straightening out the record is important; Figurovskii and Solov'ev's biography does much in this respect. Just as meritorious have been the scholarly and exhaustive efforts of Professors Charlene Steinberg and George B. Kauffman, who have made the Russian text accessible to the Western world in their accurate and engrossing translation.

On August 18, 1977 a special 'Soddy Session' was held at the Fifteenth International Congress of the History of Science, Edinburgh, Scotland, with Dr. Thaddeus J. Trenn as Symposium Chairman. This session was organized to commemorate the lOOth anniversary of the birth of Fre derick Soddy (born September 2, 1877, Eastbourne, England; died September 22, 1956, Brighton, England), who was awarded the 1921 Nobel Prize in Chemistry 'for his contributions to our knowledge of the chemistry of radioactive substances, and his investigations into the origin and nature of isotopes'. Soddy taught and/or carried out research at Oxford University (where he was Lee's Professor of Chemistry), McGill University (where he and Sir Ernest Rutherford proposed the disintegration theory of radioactivity), University College, London (where he and Sir William Ramsay demonstrated natural transmuta tion), Glasgow University (where he formulated his displacement law and concept of isotopes), llnd Aberdeen University. In addition to his contributions to radiochemistry, he proposed a number of controversial economic, social, and political theories. The present volume contains the eight lectures presented at the symposium, two additional papers written especially for this volume (Kauffman, Chapter 4 and Krivomazov, Chapter 6), a paper on Soddy's economic thought (Daly, Chapter 11), and three selections from Soddy's works. Furthermore, an introductory account of Soddy's life and work by Thaddeus J. Trenn as well as a Soddy chronology, and name and subject indexes compiled by the editor are provided."

On August 18, 1977 a special 'Soddy Session' was held at the Fifteenth International Congress of the History of Science, Edinburgh, Scotland, with Dr. Thaddeus J. Trenn as Symposium Chairman. This session was organized to commemorate the lOOth anniversary of the birth of Fre derick Soddy (born September 2, 1877, Eastbourne, England; died September 22, 1956, Brighton, England), who was awarded the 1921 Nobel Prize in Chemistry 'for his contributions to our knowledge of the chemistry of radioactive substances, and his investigations into the origin and nature of isotopes'. Soddy taught and/or carried out research at Oxford University (where he was Lee's Professor of Chemistry), McGill University (where he and Sir Ernest Rutherford proposed the disintegration theory of radioactivity), University College, London (where he and Sir William Ramsay demonstrated natural transmuta tion), Glasgow University (where he formulated his displacement law and concept of isotopes), llnd Aberdeen University. In addition to his contributions to radiochemistry, he proposed a number of controversial economic, social, and political theories. The present volume contains the eight lectures presented at the symposium, two additional papers written especially for this volume (Kauffman, Chapter 4 and Krivomazov, Chapter 6), a paper on Soddy's economic thought (Daly, Chapter 11), and three selections from Soddy's works. Furthermore, an introductory account of Soddy's life and work by Thaddeus J. Trenn as well as a Soddy chronology, and name and subject indexes compiled by the editor are provided."

A generation ago, near1y all college students who p1anned to become chemists were required to take a course in the history of their subject, but nowadays, such courses are usually not required, and in many schoo1s, are not even offered. It is argued that the subject of chemistry is expanding so rapid1y that students can hard1y master the material which fills the new text books, to say nothing of 1earning what chemists thought and did a century ago. Although this point of view has some validity, it fails to take into account the much more important fact that one cannot really understand or appreciate the present position of science un1ess he knows something of the slow and tortuous steps through which it deve10ped. His ability to he1p it move forward will be greatly enhanced by an understanding of the thinking of the chemists who built the theories which we use today. It has been tru1y said, "He who knows on1y his own generation remains a1ways a chi1d. " The appearance of a book which details the birth of a great development in chemistry is therefore a significant event, and one which we welcome warmly. The events which are chronieled here are now far enough behind us to allow a elear evaluation of their significance, but elose enough that there still remain a few people who knew WERNER personally, and who have preserved intimate records of his work. Thus, Prof.