Prominences represented in their natural colors, as seen through a large telescope when the slit of the spectroscope was open wide and directed on to the red C-line. These prominences are characteristic of the a…

Prominences represented in their natural colors, as seen through a large telescope when the slit of the spectroscope was open wide and directed on to the red C-line. These prominences are characteristic of the an…

Translated from the second enlarged and revised German edition by Jane and Caroline Lassell; edited with notes by William Huggins; with numerous woodcuts and colored plates.

From the Preface: "Its object is, on the one…

Lorenzo Respighi (1824-1889) was the director of the University Observatory at the Campidoglio at Rome. Starting in October of 1869 he observed daily the entire limb of the sun recording prominences and other phenomena.…

An illustration of a solar eclipse during the last 2 minutes, 25 seconds, therefore just before the reappearance of the sun's rays. The accompanying text states: ""Scarcely had the last ray of sunlight disappeared,"…

This plate illustrates four spectra from solar phenomena.
Spectrum 1 is Solar Spectrum and Spectrum of the Prominences, during a total Eclipse.
Spectrum 2 is Spectrum of the Corona. Observed by Charles Young…

This plate contains two prints from photographs of a solar eclipse viewed in Burlington, Iowa on August 7, 1869.
"The photographic plates, which were exposed for the brief space of from five to sixteen seconds, give…

An illustration of a man using Lockyer's telespectroscope. Sir Joseph Norman Lockyer (1836-1920), designed this instrument in order to observe the spectra of the prominences in full sunlight. Lockyer is best known for…

From a photograph taken of a solar eclipse observed from Syracuse, Sicily on 22 December 1870.
From text: "The photograph taken by Mr. Brothers is very valuable, since it shows the halo extending towards the…

Prints from photographs taken by Colonel James Francis Tennant (1829-1915). The upper picture shows the eclipse at the moment of totality, and the lower one immediately before it's cessation. Observed from Guntoor,…

Illustration of a man looking through a spectroscope.
From the corresponding text: "Fig. 52, especially the three tubes directed to the prism at different angles, as in that constructed by Kirchhoff and Bunsen. The…

Chromolithograph of a table of spectra in full color.

Here Schellen is illustrating and explaining the phenomenon of sunspots. The accompanying text states: "In Fig. 106 the drawings marked I represent the varying phases through which a spot surrounded by a penumbra…

Engraved title page is illustrated with two male figures standing on a pedestal with their names Zeuxis, a 5th century BC Greek painter, and Apelles, a 4th century BC Greek painter, found on the pedestal. They stand…

The most popular of William Salmon's numerous books, the title page refers to 25 plates within whereas other copies are also missing plates 3 and 10, as is the case with this particular copy. Select digitized content…

Engraved portrait frontispiece of author William Salmon depicts the bust of Salmon inside a vignetted frame that reads in Latin "Ætatis SuÆ 26 Anno 1670 Guilielmus Salmon Medicinae Professor," which roughly translates…

Engravings from Schem. VI of the first edition of Robert Hooke's seminal volume, Micrographia : or, Some physiological descriptions of minute bodies made by magnifying glasses. With observations and inquiries thereupon.…

Frank H. Field was raised in Cliffside Park, New Jersey, by an aunt, an uncle, and a grandmother. He entered Duke University, placing a year ahead in chemistry, but had very little money. To meet his expenses he worked…

John R. Ferraro was born and grew up in Chicago, Illinois. He attended Richard T. Crane Technical High School, then worked at General Motors for three years before entering Illinois Institute of Technology, majoring in…

This leather case, most likely a domestic kit designed for home use, appears to contain vials of powder China paint pigments, which are commonly used on porcelain/ceramic.

Folding black leather case that can be secured…

John H. Beynon was born in Ystalyfera, Wales, the older of two sons whose parents ended their education at secondary school. Beynon grew up in a coal mining town and attended a local university, the University of Wales…

This Einhundert Millionen Mark Gutschein, or one hundred million Mark voucher, was issued by Tonerde Werke Curtius A.G., or Curtius Clay Works. The paper features a watermark design.

Curtius ran an ultramarine dye…

This Ten Millionen Mark Gutschein, or ten million Mark voucher, was issued by Schwefelsäure-Werke Curtius GmbH, or Curtius Sulfuric Acid Works GmbH. Paper features a watermark design.

Curtius ran an ultramarine dye…

This Fünf Millionen Mark Gutschein, or five million Mark voucher, was issued by Friedrich Bayer & Company. Design includes a cartouche containing a winged lion with caduceus and globe as well as the Bayer logo. The…