Smithsonian Miscellaneous Collections, Volume 145Smithsonian Institution, 1968 |
Contents
Introduction | 1 |
Location | 11 |
Methods of study | 26 |
Circuit uniformity | 33 |
67 | 123 |
76 | 129 |
Vertical uniformity | 149 |
81 | 151 |
95 | 162 |
Partial and intraannual growth layers | 191 |