In the biennium 1926-1928 the three hundredth anniversary of the founding of modern physiology was celebrated. A tercentenary is an exceedingly small fraction of the time since man discovered the use of fire, invented clothes and houses, and began to huddle together under conditions which have rendered knowledge of hygiene imperative to his welfare. It is but a half century since he fully recognized his ubiquitous enemies, bacteria. However, the foundations of physiology and hygiene having been laid, man's brain has been increasingly busy along these lines and even a biennium brings forth knowledge, or applications of knowledge, in school health work that is worth recording. The following topics are addressed in relation to school health work: (1) Medical and dental work; (2) Studies regarding physical defects; (3) Better teeth; (4) Health education; (5) Nutrition; (6) Anthropometry; (7) Physical education; (8) Sanitation; (9) Clothing; (10) Rural schools; (10) Summer camps; (11) Results of school health work; (12) Nurse training; (13) Teacher training; (14) Parent-teachers; (15) Health of the teacher; and (16) Legislation and State supervision. [Advance Sheets from the Biennial Survey of Education in the United States, 1926-1928. Best copy available has been provided.]