Illustration of a Traditional Glass Thermometer | Medical & Scientific Use #1852068 (License: Personal Use)

This black-and-white line illustration depicts a classic clinical or laboratory glass thermometer, featuring a rounded bulb reservoir, a narrow capillary tube, and evenly spaced calibration lines indicating temperature readings. The style is clean and schematic, emphasizing function over realism-perfect for instructional diagrams or health-related infographics. The mercury column is shown partially risen, suggesting a mid-range temperature reading.

Used in medical education, health blogs, science textbooks, or public health campaigns to visually explain temperature measurement principles. Matches user intent for learning about thermometry, comparing old vs. modern devices, or illustrating fever detection.