Nitrocellulose posters & prints

Christian Friedrich Schonbein, German chemist, c1898 Unknown

Production of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

Filling a shell with nitro-glycerine, oil field in Pennsylvania, USA Keystone View Company

Checking the quality of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

The preparation of nitre (saltpetre) unknown

Distillation of Nitric Acid Anonymous

Illustration of Nestor and Patroclus Anonymous

Workers at Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown

Apparatus for amending metals by nitre (saltpetre) unknown

Book Illustration of The Night Blowing Cereus Anonymous

Vanitas still life seen through a trompe l'oeil window Cornelis Norbertus Gijsbrechts

Nitrous oxide apparatus Anonymous

Workers at Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown

Nils Strindberg, (1872-1897), Swedish photographer Anonymous

Niagara Falls, Noël Marie Paymal Lerebours, Rittner & Goupil Hector Bossange

Urtica Pilulifera Var. Genuina Roman Nettle Var. A. Anonymous

Long horned beetle Diastocera wallichi Anonymous

Italiani, Aiutate la Croce Rossa Nell'Assistenza ai Tubercolosi Poster Basilio Cascella

Distillation of Oil of Vitriol (sulphuric acid or H2S04), 1651 Unknown

Arnoseris Pusilla; Swine's Succory Anonymous

Horn Beetle Celosterna pollinosa Anonymous

Timarcha tenebricosa (bloody-nosed beetle, blood spewing beetle) Anonymous

Attelabus nitens (oak leaf-roller ) Anonymous

British troops advance under cover of darkness, Neuve-Chapelle, France Frederic Villiers

Street in Sebastopol, French Troops Taking Ammunition to the Mortar Battery Near Fort Nicholas Anonymous

The Eastern Question; at Nisch: We Shall Live to Fight Again!: Turks in the English Red Cross Hospital Anonymous

Selenipedium hybridum nitidissimum F. Sander

Workers at Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown

Cartridge from Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown

Illustration of Military Rocket Compartments Anonymous

Neutron Star at the center of the Crab Nebula Anonymous

Celsus French School

USS Nimitz Passing Through Suez Canal Anonymous

Urtica Pilulifera Var. Dodartii Roman Nettle Var. B. Anonymous

Michman Graf Alexei Michaylovich Nieroth, c. 1905 Anonymous