This chapter continues the time frame of Chapter 8 through the first half of the twentieth century, an important period in which linguistics and phonetics gained their own identities. The editors and contributors of this volume have chosen to examine an area of study over two successive periods: the late nineteenth century and the first half of the twentieth century. This aims to show that a discipline may go through transformations, sometimes branching into new disciplines, and that methods and instruments of training contribute to the formation or consolidation of new disciplines. The first half of the twentieth century saw the breakaway of language sciences (linguistics and phonetics) from philology. Although language scholars usually received substantial training in philology, especially comparative philology (known as comparative grammar in France), they took up new methods in training the next generation. In the United States, the new instrument of training was fieldwork, adopted for unwritten American Indian languages. In Britain, it was phonetic transcription by ears and hands. The use of the kymograph in phonetic laboratories began in France and spread elsewhere. This chapter begins with Fang-Kuei Li, who was likely the first student to receive advance (or on-site) fieldwork training for doctoral work in language studies and who went on to become a pioneering linguist in China. It then compares the training of language scholars in Britain, France, and Germany. This comparison sheds light on the diversity of approaches to language studies and their training methods, and on the intellectual and technological realities conditioning the formation of linguistics and phonetics as autonomous disciplines.