| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 1 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 2 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 3 |
 |
Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 4 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 5 |
 |
Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 6 |
 |
Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 7 |
 |
Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 8 |
 |
Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 9 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 10 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 11 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 12 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 13 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 14 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 15 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 16 |
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Mt. Pleasant Pyramid | 1912-11-01 | unclassified | |
| 17 |
 |
Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 18 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 19 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 20 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 21 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 22 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 23 |
 |
Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 24 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified | |
| 25 |
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Mt. Pleasant Pyramid | 1912-11-08 | unclassified |