This card shows images adapted from 1910's The Voice, An Introduction to Practical Phonology by WA Aikin. The vertical axis shows the range of a given voice type (soprano, contralto etc.), while the horizontal bars plot the prevalence of each note (C, D, E etc.) sung in a given composition. In this way the diagrams attempt to show which pieces of music require a lot of high notes and might, consequently, strain the singer.
Printed on acid free paper.
Measurements: 17 cm x 12 cm.
Comes with 120gsm recycled envelope.
Adapted from the ‘Chemistry of Combustion and Illumination’ in The Chemical Atlas Designed for the Use of Students and Pupils in all Schools Where Chemistry is Taught (1854) by Edward L. Youmans. Printed on acid free paper.Measurements: 17 cm x 12 cm.Comes with 120gsm recycled...
A very different kind of colour theory, from the Theosophists. This chart showing the spiritual and mental 'meanings' of colour is adapted from Thought-Forms by Annie Besant and C.W. Leadbeater (1905) Printed on acid free paper.Measurements: 17 cm x 12 cm.Comes with 120gsm recycled envelope.Blank...
A comparison of the window tracery design of English Gothic church architecture as it developed. Adapted from the illustration in A History of Architecture on the Comparative Method for the Student, Craftsman and Amateur, Banister Fletcher (14th Edition, 1948). Printed on acid-free paper.Measures: 17 cm x...
The perfect card for any Railway enthusiast, this illustration adapted from The Wonder Book of Railways for Boys and Girls (c.1922) demonstrates the system of lamps and discs used on the front of locomotives to identify types of train by their cargo. Printed on acid...