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87

[[underlined]] July 2, 1896 [[/underlined]]

Measure of Iceland Spar Plates.

Plate E 3155
[2 columned table]
| --- | --- |

| a 1 | 5.5 |
| 2 | 6.0 |
| 3 | 5.3 |
| 4 | 5.9 ^[[227]] |
| b 1 | 4.5 |
| 2 | 5.0 |
| 3 | 4.4 |
| 4 | 5.0 ^[[189]] |
| d^[[1]] 1 | 4.7 |
| 2 | 5.2 |
| 3 | 4.5 |
| 4 | 5.1 ^[[195]] |
| e^[[1]] 1 | 4.8 |
| 2 | 5.3 |
| 3 | 4.7 |
| 4 | 5.3 ^[[201]] |

Plate E 3156
[2 columned table]
| --- | --- | 

| a 1 | 5.1 |
| 2 | 5.6 |
| 3 | 5.0 |
| 4 | 5.6 ^[[213]] |
| b 1 | 4.2 |
| 2 | 4.9 |
| 3 | 4.1 |
| 4 | 5.0 ^[[182]] |

^[[See next page]] 

John G. Wolbach Library, Harvard-Smithsonian Center for Astrophysics • Provided by the NASA Astrophysics Data System 

Transcription Notes:
Reopened - several mistakes.