Nitrating posters & prints

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

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

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

Nobel's Dynamite Manufactory, Ardeer Anonymous

Distillation of Nitric Acid Anonymous

Distillation of Nitric Acid, 1683 Unknown

The preparation of nitre (saltpetre) unknown

Apparatus for amending metals by nitre (saltpetre) unknown

Athanor or Slow Harry, a self-feeding furnace maintaining a constant temperature, 1683 Unknown

Nitrous oxide apparatus Anonymous

Illustration of "Apparatus for Coating Gelation-Bromide Plates" Anonymous

Nita in Giverny, 2017 Deborah Eve Alastra

Cylinders for nitrous oxide Anonymous

Droplet Penetrating Water's Surface Anonymous

Conspiracy in Russia: A Nihilist Meeting Surprised Illustration Anonymous

Scientist conducting a titration experiment Anonymous

Hermits in the desert of Nitra Maerten de Vos

Illustration of a Little Girl Knitting Jessie Willcox Smith

The Nightingale is Singing, 1918 Mikhail Vasilyevich Nesterov

Hermits in the desert of Nitra Maerten de Vos

The Final Award - Last Sitting of the Geneva Court of Arbitration Anonymous

Decorating the Christmas Tree Dynevor Rhys

Platinum still for concentrating sulphuric acid (Oil of Vitriol or H2S04), 1844 Unknown

Supply Rating WA & AC Churchman

Magazine Illustration Depicting Tamara Karsavina and Vaclav Nijinsky Anonymous

Illustration of Couple Sitting Inside Carriage Anne Harriet Fish

Athanor or Slow Harry, a self-feeding furnace maintaining a constant temperature, 1683 Unknown

Calendar Illustration of Mother and Daughter Knitting F. Sands Bruner

Illustration of Joseph Nicholas Nicollet Exploring Lake Itasca Anonymous

Illustration for poem Hunting with hounds by Nikolay Nekrasov, Early 20th cen Anonymous

Picardy 121 - Chateau-Thierry - Musee Jean de La Fontaine - Painting by Nicolas Vleughels - illustrating “” the gascon... Anonymous

Illustration of girl selecting book Anonymous

A prince celebrating Holi with palace women on a terrace at night; verso: calligraphy of a quatrain, Unknown

Jean Martin Charcot demonstrating hypnosis, 1879 Anonymous

Illustration of Session Meeting Anonymous

Illustration People Decorating Graves Anonymous