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31 résultats pour : environmental conservation

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chemistry professor Friedrich Boelsing 1984
UMG25A07_303

chemistry professor Friedrich Boelsing 1984

Petition against highway construction in the Weinland, 1972.
UMG25A07_484

Petition against highway construction in the Weinl...

Dietikon; trees reflecting on water; marble pond; 1961
UMG25A13_067

Dietikon; trees reflecting on water; marble pond; ...

Scouts collecting rubbish, 1971.
UMG25A09_044

Scouts collecting rubbish, 1971.

Beta Synchrotron, monitoring room, Berne 1953
UMG25A16_212

Beta Synchrotron, monitoring room, Berne 1953

Scouts collecting rubbish, 1971
UMG25A15_392

Scouts collecting rubbish, 1971

Petition against highway construction in the Weinland, 1972.
UMG25A07_029

Petition against highway construction in the Weinl...

Demonstration with air hammer at exhibition noise abatement, Zurich 1960
UMG25A13_187

Demonstration with air hammer at exhibition noise ...

Noise measuring device of the metropolitan police Zurich 1961
UMG25A13_289

Noise measuring device of the metropolitan police ...

Conservation campaign in the Maggia valley, 1971.
UMG25A08_391

Conservation campaign in the Maggia valley, 1971.

Woman with radiation gauge, 1973
UMG25A11_480

Woman with radiation gauge, 1973

Air hygienist Roberto Mona, 1986
UMG25A16_475

Air hygienist Roberto Mona, 1986

Safety-construction against seepage of fire water, 1986.
UMG25A07_102

Safety-construction against seepage of fire water,...

Noise abatement: night driving ban downtown Zurich 1972.
UMG25A10_063

Noise abatement: night driving ban downtown Zurich...

Noise abatement: night driving ban downtown Zurich 1972
UMG25A15_490

Noise abatement: night driving ban downtown Zurich...

Civil defence demonstration, 1973.
UMG25A07_103

Civil defence demonstration, 1973.

Conservation campaign in the Maggia valley, 1971.
UMG25A07_133

Conservation campaign in the Maggia valley, 1971.

Test gardening along the motorway, 1972.
UMG25A07_150

Test gardening along the motorway, 1972.

Radiation gauge, 1970.
UMG25A08_300

Radiation gauge, 1970.

Heinz Odermatt opening a weir on the Reuss, Lucerne 1993
UMG25A11_226

Heinz Odermatt opening a weir on the Reuss, Lucern...

Hunter in the mountains, with field glasses, 1980
UMG25A13_480

Hunter in the mountains, with field glasses, 1980

Singing children, protest against construction of hydroelectric power station; 1952
UMG25A16_153

Singing children, protest against construction of ...

Inspection of water and gas pipes, 1972.
UMG25A07_147

Inspection of water and gas pipes, 1972.

Banner, Protest against construction of hydroelectric power station; 1952.
UMG25A07_215

Banner, Protest against construction of hydroelect...

NASA Trial Windmill
UMG24A16_015

NASA Trial Windmill

High Up Lumberjack
UMG24A16_014

High Up Lumberjack

Log Rafts In Oregon
UMG20A12_057

Log Rafts In Oregon

Lumber Raft In Oregon
UMG20A12_058

Lumber Raft In Oregon

Log Rafts In Oregon
UMG20A12_055

Log Rafts In Oregon

Log Rafts In Oregon
UMG20A12_056

Log Rafts In Oregon

Mississippi Flood Control
UMG20A19_016

Mississippi Flood Control