Physics ; Chemistry ; Astronomy ; Sciences of the Earth
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | German |
| Cyhoeddwyd: |
Boston ; New York :
Houghton, Mifflin and Co.,
1906
|
| Cyfres: | Congress of Arts and Science / ed. by Howard J. Rogers
Vol. 4 |
| Disgrifiad Corfforoll: | 761 S. |
|---|---|
| Rhif Galw: | PH 8 */Con-04 |