Mounted platinotype print entitled 'Radiograph of 'Nautilus Pompilius'' showing an x-ray picture of Nautilus Pompilius by George H Rodman MD, 1907. Radiograph of 'Nautilus Pompilius' 1907
Nine platinotype prints in one mount entitled 'Radiographs of Molluscal Shells' showing x-ray pictures of various molluscal shells, by George H Rodman MD, 1907; 'Cassis & Helix', 'Lymncea & Bulimus', 'Voluta', 'Harpa &...', 'Struthiolaria', 'Buccinum & Littorina', 'Murex', 'Cerithium & Aporrhais', 'Telescopium'. Further handwrtten notes on reverse of mount. Nine Platinotype Prints 'Radiographs of Molluscal Shells' 1907
Counter for low-level alpha radiation used at the British Museum Department of Scientific Research for measuring the radiation level of surrounding soil when calculating thermoluminescence dates of samples, estimated date 1970-1979, comprising counter unit probably by the Littlemore Scientific Engineering Co., plus a Brandenberg model 2475R photomultiplier power supply mounted in one housing, and a photomultiplier tube unit. Counter for low-level alpha radiation used at the British Museum Department of Scientific Research
'Macalaster Wiggin' heavy current gas x-ray tube with tungsten target, stabilizing ring and automatic vacuum regulator, by Newton & Wright, 1918-1932. 'Macalaster Wiggin' heavy current gas x-ray tube with tungsten target
Gas x-ray tube with platinum anti-cathode, additional glass bulb, and automatic carbon-mica vacuum regulator; for multiple simultaneous therapy, by C. H. F. Muller, 1912-1914. Gas x-ray tube with platinum anti-cathode