Antique chromolithograph butterfly plate from Macrolepidoptera of the World, Volume 5, Dr. Adelbert Seitz, Editor. Papilio - Parnassius - Plate 17 either a black and silver

either a black and silver pen

but in areas the garnet has been concentrated by wave action

These specialized  crucibles are used in determining the mass of precipitates

green and pink

the longshore current moves sand southward along the coast in California

Antique chromolithograph butterfly plate from Macrolepidoptera of the World, Volume 5, Dr. Adelbert Seitz, Editor. Papilio - Parnassius - Plate 17 either a black and silverThe Seitz plates are spectacular examples of scientific illustration and printing from the early 1900s. The use of metallic inks is unusual and makes some plates particularly dynamic. These were printed over a period from 1907 to 1954, with interruptions by two World Wars. All of these plates will mat and frame handsomely. They measure 9 3 4 " x 13" with a roughly 1 1 4" margin outside the black frame line. They are on a cream paper that is only very