| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 151 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 152 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 153 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 154 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 155 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 156 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 157 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 158 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 159 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 160 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 161 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 162 |
 |
Mt. Pleasant Pyramid | 1915-04-16 | unclassified | |
| 163 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 164 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 165 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 166 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 167 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 168 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 169 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 170 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 171 |
 |
Mt. Pleasant Pyramid | 1915-04-23 | unclassified | |
| 172 |
 |
Mt. Pleasant Pyramid | 1915-04-30 | unclassified | |
| 173 |
 |
Mt. Pleasant Pyramid | 1915-04-30 | unclassified | |
| 174 |
 |
Mt. Pleasant Pyramid | 1915-04-30 | unclassified | |
| 175 |
 |
Mt. Pleasant Pyramid | 1915-04-30 | unclassified |