File:1974. Tom Gregg records data for three different temperature and humidity checks hygrothermograph; sling slycrometer, and separate thermometer-hygrometer. Douglas-fir tussock moth control project. (35161765811).jpg
Jump to navigation
Jump to search
![File:1974. Tom Gregg records data for three different temperature and humidity checks hygrothermograph; sling slycrometer, and separate thermometer-hygrometer. Douglas-fir tussock moth control project. (35161765811).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/1974._Tom_Gregg_records_data_for_three_different_temperature_and_humidity_checks_hygrothermograph%3B_sling_slycrometer%2C_and_separate_thermometer-hygrometer._Douglas-fir_tussock_moth_control_project._%2835161765811%29.jpg/800px-thumbnail.jpg?20180504000551)
Size of this preview: 800 × 529 pixels. Other resolutions: 320 × 212 pixels | 640 × 423 pixels | 1,024 × 677 pixels | 1,280 × 847 pixels | 2,560 × 1,693 pixels | 3,600 × 2,381 pixels.
Original file (3,600 × 2,381 pixels, file size: 3.83 MB, MIME type: image/jpeg)