Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: COURSE IN Physical Measurements GENERAL DIRECTIONS. Each of the following exercises is intended to occupy the time of one laboratory period, unless otherwise stated. There will usually be time, after completing the observations, to calculate and write out the results; but this is not required. Carbon copies of completed notes and results must be handed in within two weeks of the date on which the experiment was performed. These papers will be marked in the following four grades: I, excellent; 2, satisfactory; 3, deficient in some part, which will usually be indicated; 4, unsatisfactory as a whole. Papers marked 3 or 4 will be raised to grade 2 if put in satisfactory condition within one week from date of marking, unless this involves repetition of the experiment, when more time will be allowed. Carbon copies only of such corrections will be received. Only papers which are marked lower than grade 2 will be returned to students; all satisfactory papers will be kept by the instructor in charge, for reference in case of doubt as to markings. Papers not handed in within the time limits set above will not be marked higher than grade 3, except in special cases. All observations should be recorded directly in the notebook. If for any reason it is desirable to take them on loose paper they should be copied at once into the book. If any observations are rejected, the reason should be stated. Use millimeter co-ordinate paper for plots. Indicate both scales clearly. Lay a piece of thin co-ordinate paper over the original plot, match the rulings, and make an exact tracing to 6 GENERAL DIRECTIONS. hand in with the notes. Keep the original in the note-book. Neatness and orderly arrangement of notes will be insisted upon. Tja-b'tilate numerical data when possible....