The present laboratory manual was developed primarily to provide suitable experiments in elementary laboratory practice for all levels of students, both the average and the exceptional. Impressed by the possibilities of the semimicro technic in connection with this problem, the author began several years ago to experiment with it in his classes. After mature consideration and six years of trial and error with all types of students, he believes that it is possible to attain all the objectives of laboratory practice in elementary organic chemistry using the semimicro technic. In addition, this method offers the following advantages over the traditional method: (1) it permits better adaptation of the laboratory work to the varying needs of students; (2) it teaches students greater care, cleanliness, and manipulation; (3) it is more economical; and ...