Matches in Library of Congress for { ?s ?p Actinometer.. }
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- 64030707 subject "Actinometer.".
- 72367727 subject "Actinometer.".
- 75408900 subject "Actinometer.".
- 77603021%2F%2Fr83 subject "Actinometer.".
- 79393195 subject "Actinometer.".
- 80456831 subject "Actinometer.".
- 80464403 subject "Actinometer.".
- 80506533 subject "Actinometer.".
- 84118769 subject "Actinometer.".
- 84214198 subject "Actinometer.".
- 86137152 subject "Actinometer.".
- 86137154 subject "Actinometer.".
- 88204224 subject "Actinometer.".
- 88214443 subject "Actinometer.".
- 89179327 subject "Actinometer.".
- a48008621 subject "Actinometer.".