Calotype
The first effective version of photography, using drawing or writing paper for both the negative and the positive. The paper was sensitised with potassium iodide and silver nitrate, exposed and developed in gallic acid and silver nitrate.
Lithograph
A printmaking technique using a stone or zinc plate to which the image is applied with a greasy material. After wetting the plate, greasy ink is applied. The ink sticks only to the drawn image and not the wet surface, thus creating a reproduction when applied to paper.
Medium/ media
The material from which an artwork is made, e.g. oil paint, bronze, paper. 'Medium' is also used for the liquid element of paint in which a colouring agent is carried. 'Mixed media' is used when an artist combines several different materials in an artwork.
Royal Scottish Academy
The Royal Scottish Academy (RSA) was formed in Edinburgh in 1826 by Scottish artists who felt alienated by what they perceived as the elitism of the Royal Institution and its management of contemporary art exhibitions. In 1835, the RSA secured exhibition rights in the Royal Institution building, which had been erected on The Mound by the Board of Manufactures in 1826. The RSA and the Board frequently argued over responsibilities for advanced art education. From 1859, the RSA shared the premises of the new National Gallery of Scotland under the Board’s custody. In 1910, after transferring most of its art collections to the Gallery, the RSA gained exclusive tenancy of the former Royal Institution building, where it continues to hold large-scale annual exhibitions.
Calotype, Lithograph, Medium/ media, Royal Scottish Academy
