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Dr. Franz
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20th Century
(18)
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Dr. Franz
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for Students undertake a thorough cleaning before every meal.
Students undertake a thorough cleaning before every meal.
Dr. Franz
1930s
Photograph
Image Not Available
for This apparatus registers wind direction on the top and force of the wind on the bottom. This is an important instrument for the meteorologists on the lakes.
This apparatus registers wind direction on the top and force of the wind on the bottom. This is an important instrument for the meteorologists on the lakes.
Dr. Franz
1930s
Photograph
Image Not Available
for Untitled
Untitled
Dr. Franz
1930s
Photograph
Image Not Available
for Weather stations located on high sea, for example on ships, measure the temperature of the sea water.
Weather stations located on high sea, for example on ships, measure the temperature of the sea water.
Dr. Franz
1930s
Photograph
Image Not Available
for With a grinding wheel, the edges of the crystal are made smooth.
With a grinding wheel, the edges of the crystal are made smooth.
Dr. Franz
1930s
Photograph
Image Not Available
for A young student reads underneath a glass painting in the window of the founder of Rauhe House, J. H. Wichern.
A young student reads underneath a glass painting in the window of the founder of Rauhe House, J. H. Wichern.
Dr. Franz
1930s
Photograph
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