This manuscript reports a study that was made of procedures in curriculum building. The author discovered that there were three general types of curriculum revision aside from revision in a very few independent schools. These types were a city-wide type, a county-wide type, and a state-wide type. The first was found in a great many of our cities varying in size and location. The county-wide type was found best exemplified in the State of Maryland where county revision secures the assistance of a State supervisor. The state-wide type was found in approximately a third of the States and varied greatly in effectiveness. When the cost of curriculum revision was investigated it was discovered that very few schools keep an exact record; some superintendents do not attempt to keep any sort of account of expenditures for curriculum revision. The range of expenditures reported varied from nothing to twenty-five or thirty thousand dollars per year with an average of less than four hundred dollars per year. In nearly all cases the revision of the curriculum is made part of the work of supervision. This means that superintendents, principals, and supervisors are the most important directing officers. Specialists from without the system are, however, employed in about one-fourth of the programs. This manuscript is concerned with detailed minutia of curriculum making. The concrete reporting of practices will, it is believed, be very helpful to those who are now attempting reconstruction of the curriculum. (Contains 43 tables, 2 figures, and 6 footnotes.) [Best copy available has been provided.]