Longitude (deg): -0.3. Latitude (deg): 51.2. Longitude (deg/min): 0ÃÂ° 20' W. Latitude (deg/min): 51ÃÂ° 20' N. Vice county name: Surrey. Vice county no.: 17. Country: England. Comment: in steel tank with Spirodela polyrhizae. Category: microscope photograph. Image scaling: highly magnified. Photographic equipment used: Canon EOS1000D dSLR and Axioskop microscope with "2.5" projection eye-piece.