From the book
A Chymical Dictionary
Gerhard Dorn and John French · Diotimos Editions · 2026
Browse this book’s lexicon →Orientation
At a Glance
- The wordTwo forms leading to litharge.
- In the bookLethargyrium gives a fuller account of a scum separated while metallic materials are purified.
- A place to readThe historical definition below, 1650 dictionary, unnumbered definition page 32; facsimile PDF page 360.
Historical definition
Martath, or Martach, is litharge.
Meaning
The entry supplies alternative spellings and one material equivalent. Neither spelling receives an independent description of composition or preparation, so their separate appearance in a text need not imply separate ingredients.
Use in the book
Lethargyrium gives a fuller account of a scum separated while metallic materials are purified. Its range includes mercury, silver and lead; that wider definition should be consulted rather than silently narrowed on the strength of a resemblance between the names.
Places to read
- MartathRead the complete historical definition and its commentary.
- LethargyriumA separated scum from the purification of three named metallic materials.
Source note
Historical source. 1650 dictionary, unnumbered definition page 32; facsimile PDF page 360 — Facsimile
Sources. A Chymical Dictionary 1650, 1650 dictionary, facsimile PDF page 360, Martath