Wagner Free Institute of Science - Engineering 1: The Materials of Engineering Construction

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  • Subject = Wood

About This Collection

This collection consists of glass lantern slides and syllabuses for the course “The Materials of Engineering Construction.” It was the first in a series of four courses in Civil Engineering, developed by Samuel Tobias Wagner and taught at the Wagner Free Institute of Science between1893 and 1950. The course discussed the properties, mining, and manufacturing of the various materials used in civil engineering, including stone, brick, cement, concrete, wood, iron, and steel. Of note in the collection are photographs of quarries and furnaces in Swedeland, PA and photos of the Phoenix Iron Co., Phoenixville, PA.
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Board of pine
Board of pine
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of an illustration with the caption, "Fig. 3 - Board of Pine. CS, cross section; RS, radial section; TS, tangential section; sw, summer wood; spw, spring wood." Reproduced from “Timber: an elementary discussion of the characteristics and properties of wood” by Filibert Roth. Washington, D.C.: Dept. of Agriculture, Forestry Division, 1895. Bulletin (United States. Division of Forestry) no. 10. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
Cells of maple wood attacked by fungus threads (Nectria cinnabarina Mayer)
Cells of maple wood attacked by fungus threads (Nectria cinnabarina Mayer)
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of an illustration with the caption, "Fig. 36 - Cells of maple wood attacked by fungus threads (Nectria cinnabarina Mayer). Section of three wood fibers showing the threads of the fungus branching in their cavities and consuming the starch stored in these cells. a. interior or cavity of cells; b. threads of the fungus; c. partly destroyed starch grains; d. dead portions of the fungus thread together with debris; e. holes bored by the fungus through the cell walls; S. starch grains just being attacked." Reproduced from “Timber: an elementary discussion of the characteristics and properties of wood” by Filibert Roth. Washington, D.C.: Dept. of Agriculture, Forestry Division, 1895. Bulletin (United States. Division of Forestry) no. 10. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
Damage to Wood by Pests
Damage to Wood by Pests
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of a piece of wood damaged by pests. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
Mammoth Live Oak near Jacksonville, Florida
Mammoth Live Oak near Jacksonville, Florida
Civil engineering--Materials, Wood, Oak, Lantern slides
Glass lantern slide of a mammoth live oak near Jacksonville, Florida. Reproduced from a book. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
Possibilities of cutting timber from a log with reference to position of grain
Possibilities of cutting timber from a log with reference to position of grain
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of an illustration with the caption, "Fig. 2 - Possibilities of cutting timber from a log with reference to position of grain." Reproduced from “Timber: an elementary discussion of the characteristics and properties of wood” by Filibert Roth. Washington, D.C.: Dept. of Agriculture, Forestry Division, 1895. Bulletin (United States. Division of Forestry) no. 10. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
Section of wood showing position of the grain at base of a limb
Section of wood showing position of the grain at base of a limb
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of an illustration with the caption, "Fig. 14 - Section of wood showing position of the grain at base of a limb. P, pith of both stem and limb; 1-7, seven yearly layers of wood; a, b, knot or basal part of a limb which lived four years, then died and broke off near the stem, leaving the part to the left of a, b, a "sound" knot, the part to the right a "dead" knot, which would soon be entirely covered by the growing stem." Reproduced from “Timber: an elementary discussion of the characteristics and properties of wood” by Filibert Roth. Washington, D.C.: Dept. of Agriculture, Forestry Division, 1895. Bulletin (United States. Division of Forestry) no. 10. No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.
The Teredo, or Ship Borer. Enemies of Wood, Marine Wood-Borers
The Teredo, or Ship Borer. Enemies of Wood, Marine Wood-Borers
Civil engineering--Materials, Wood, Lantern slides
Glass lantern slide of an illustration with the caption, "Fig. 2." The cross section labels the "Shell", the "Wood", and the "Soft Body of Teredo." (A Teredo is a Naval Shipworm - one of several genera of wood-boring bivalve shipworms.) Reproduced from “Marine Wood-Borers” by Charles H. Snow. (Proceedings of the American Society of Civil Engineers, Vol 24, 1898). No label on slide. Used to illustrate the course "Materials of Engineering Construction" which was taught between 1893-1950.