1851. The only Prize Medal for Meteorological Instruments was awarded to Negretti and Zambra.<br><br>1855. "Honourable Mention." - Paris Exhibition.<br>The Kew Committee exhibited among their Apparatus one of N. & Vs Patent Maximum Thermometers ; the Jury awarded an Honourable Mention for this Instrument. Netgretti and Zambra not having exhibited at all.<br><br>The "Austrian Gold Medal." - For Stereoscopic Photographic Views on Glass.<br><br>1862. Two Prize Medals. - I. Meteorological Instruments. - The terms of the Award being as follows : - "For many important inventions and improvements, together with accuracy and excellence in objects exhibited."<br><br>II. Photographic Transparencies, "for beauty and excellence of, and adaptation of Photography to Book Illustrations."<br><br>1875. A Prize Medal. - Santiago, Chili, awarded for their exhibited collection of Optical and Physical Instruments.<br><br>1876. Three Pries Medals.—Philadelphia, "for Meteorological Instruments;" "for Thermometers" and "for Microscopes.''<br><br>1878. A Gold Medal, Paris. The only Gold Medal awarded for Meteorological Instruments in the British Section.<br><br>Fisheries Exhibition, Norwich. A Silver Medal and Diploma for Deep Sea Recording Thermometers and Sextants.<br><br>Fisheries Exhibition, Edinburgh. A Silver Medal for Deep Sea Recording Thermometers, &c.<br><br>Buitenzorg, Batavia, Java Exhibition. A Gold Medal for general excellence of Optical Instruments exhibited.<br><br>International Fisheries Exhibition, London. A Gold Medal for Meteorological Instruments. A Silver Medal for Deep Sea Recording Thermometers. A Bronze Medal for Current Meter. A Gold Medal for Standard Barometers.<br><br>International Health Exhibition, London. A Gold Medal for Hourly Recording and other Registering Thermometers.