Abaculi

Friday, August 31, 2012

God Supporting the World (1900)

Paul Caras. The History of the Devil and the Idea of Evil: From the Earliest Times to the Present Day. (Chicago: Open Court Publishing Company, 1900).

Thursday, August 30, 2012

Periodic Spiral of the Elements (1919)

Ingo W. D. Hackh. "The Classification of the Chemical Elements." Scientific American Supplement. 87 (March 8, 1919).

Wednesday, August 29, 2012

The Golden Wheel (1909)

Grand Orient. A Manual of Cartomancy, Fortune-Telling, and Occult Divination Including the Oracle of Human Destiny, Cagliostro's Mystic Alphabet of the Magi, The Golden Wheel of Fortune, The art of Invoking Spirits in the Crystal, The Various Methods of Divination. (London: William Rider and Son, 1909).

Tuesday, August 28, 2012

Cuauhxicalli of Tizoc (1887)

Randolph L.Geare, “Mexican Antiquities,” The Popular Science Monthly 31 (May 1887): 81.

Monday, August 27, 2012

Windmill (1871)

J.B. Primus. "Windmill." The English Mechanic and World of Science. 13 (June 16, 1871).

Sunday, August 26, 2012

In a Given Circle (1871)

In a given circle to inscribe a regular hexagon or figure of six equal sides Let 0 be the centre fig 83

Edward Wyndham Tarn. Practical Geometry for the Architect, Engineer, Surveyor and Mechanic. (London: Lockwood and Company, 1871).

Saturday, August 25, 2012

On the Law of Storms (1879)

on referring to figure p 139 it will be seen that at all places over which the right hand half of the storm passes the wind veers with the sun or from east to south or from left to right of the observer while at all places under the influence of the left hand semicircle of the storm the wind veers in the contrary direction or against the sun and this will be the case in whatever direction the storm may be travelling and in whichever way it may be rotating so that in the storms of the Indian Ocean or in storms of the southern hemisphere although rotating the contrary way to this a veering of the wind from the right to the left of the observer will equally indicate that he is at the left side of the storm and vice versa although in that hemisphere the expressions with the sun and against the sun will have their meaning reversed

James Greenwood. The Sailor's Seabook: A Rudimentary Treatise on Navigation. (London: Crosby, Lockwood, and Company, 1879).

Friday, August 24, 2012

Direct & Retrograde Motion (1844)

Elijah Hinsdale Burritt. "Direct and Retrograde Motion." The Geography of the Heavens: And Class-book of Astronomy: Accompanied by a Celestial Atlas. (New York: Huntington and Savage, 1844).