CFL’s Crowd-Sourced Secchi Slideshow: Happy Earth Day!
We asked, and you answered! It’s Earth Day and we’re continuing our shout out to the inventor of limnology’s most ubiquitous instrument. (Full captions to photos are posted below) Click on images above for slideshow. Fuller captions describing images are provided below: 1 – Pietro Angelo Secchi, dropped the first disk off the side …