Sizing information
| Overall size (inc frame) | x cm ( x in) |
| Depth | cm (in) |
| Artwork | x cm ( x in) |
| Border (mount) |
cm
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| The paper size of our wall art shipped from the US is sized to the nearest inch. | |
Our prints
We use a 200gsm fine art paper and premium branded inks to create the perfect reproduction.
Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.
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Manufactured in the UK, the US and the EU
All products are created to order in our print factories around the globe, and we are the trusted printing partner of many high profile and respected art galleries and museums.
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Delivery & returns
We print everything to order so delivery times may vary but all unframed prints are despatched within 1–3 days.
Delivery to the UK, EU & US is free when you spend £75. Otherwise, delivery to the UK costs £5 for an unframed print of any size.
We will happily replace your order if everything isn’t 100% perfect.
Product images of The preparation of nitre (saltpetre)
Product details The preparation of nitre (saltpetre)
The preparation of nitre (saltpetre)
This plate forms part of Johann Rudolf Glauber's treatise on 'The Prosperity of Germany', and illustrates various stages in 'the Preparation of Salt-petre' (nitre). The two images at the top show 'the manner of Boiling Salt-petre, and ... by what means a Lixivium is to be made out of a Nitrous Earth', according to the methods of another German chemist, Lazarus Ercker. The lower image shows the preparation of the 'Lixivium' of saltpetre from horse dung or the leaves of trees. Plate facing p.339 in the book The works of the highly experienced and famous chymist, John Rudolph Glauber, containing great variety of choice secrets in medicine and alchymy ... (English translation by Christopher Packe, London, 1689).
Original: engraving. 1689
- Image ref: RS-10420
- The Royal Society
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