Entitled "A Wonderful Ceiling," photographic reproduction depicts the Ballroom of stalactites found within the Luray Caverns in Luray, Virginia. Accompanying text describes how stalactites are formed by chalk-filled…

Figure illustrates salammoniac under magnification after being dissolved in water, causing the crystals to separate out from the solution.

This plate is found within The Romance of Modern Chemistry, which is a layman's…

A photographic reproduction of the replica of an alchemist's laboratory located in the Deutsches Museum in Munich, Germany. Various vessels for distillation can be seen along with two furnaces.

This plate is found…

Figure illustrates crystals from a fused alloy of copper and tin under magnification.

This plate is found within The Romance of Modern Chemistry, which is a layman's introduction to topics in chemistry. Includes a…

Entitled "Capping a Burning Oil Well," illustration depicts workers leading a crane with a cap to a petroleum fire. Explanatory text states how cap will be lowered upon the source of the petroleum leakage to extinguish…

Entitled "A Chemical Fire-Engine," photographic reproduction depicts firemen standing on a chemical fire engine truck. The caption states how a carbonate acid mixture results in carbon dioxide, which provides water…

Entitled "A Simple Chemical Change," photographic reproduction depicts a lump of quicklime in the top photograph with the middle photograph exhibiting steam emitting from the lump as a result of the addition of water. …

Entitled "A Big Blaze at Baku," photographic reproduction depicts a petroleum fire at the petroleum fields in Baku, Azerbaijan, formerly under Russian rule. The natural stores of oil gush from the earth's surface; when…

Entitled "Where Stalactites Abound," illustration depicts two men exploring inside the stalactite caverns in Padirac, France. Rays of light emit from the opening at the top of the cavern. A stairwell descends into the…

Entitled "Molten Iron without a Furnace," photographic reproduction depicts rail workers melting a mixture of metallic aluminum and iron oxide, known as thermit. When heated, a chemical action results in metallic iron…

Photographic reproduction depicts bundles of wheat grown on an experimental farm at Rothamsted, England with varying amounts of manure and chemical fertilizers. The first column shows the year 1878 with the second…

Entitled "A Dangerous Area," photographic reproduction depicts a dynamite factory located in Cornwall, England. Accompanying text states how mounds help to localize damage in the case of an explosion. Pipes transport…

Entitled "The Rubbish Heap of a Chemical Industry," photographic reproduction depicts mounds of alkali waste at the United Alkali Company Limited plant in St. Rollox, Glasgow, Scotland. Smoke stacks can be seen in the…

Entitled "What Modern High Explosives Can Do," photographic reproduction depicts the explosion of a wood boom located in a natural body of water. Debris, fire, smoke and water emanate from the explosion.

This plate is…

Entitled "Where it Rains Petroleum," illustration depicts oil wells in Baku, Azerbaijan. One oil well spews petroleum with workers and onlookers seen throughout the landscape.

This plate is found within The Romance of…

Entitled "Natural Gas in England," photographic reproduction depicts a source of natural gas found in Heathfield, Sussex, England. An onlooker observes the ignited source of natural gas.

This plate is found within The…

Entitled "A Striking Feature of Modern Aluminum Works," photographic reproduction depicts water pipelines traversing a hillside in Kinlochleven in Argyllshire, Scotland. Accompanying text states how water power is used…

Entitled "How a Man may Breath Safely in a Poisonous Atmosphere," photographic reproduction of the front and backside view of a man wearing a breathing apparatus. The caption states how the breathing bag delivers oxygen…

A layman's introduction to topics in chemistry including a history of chemistry along with alchemy and the philosopher's stone; elements including organic, invisible, metals, acids, alkalies, and water; chemical changes…

Entitled "Sealing Platinum Wires into an Electric Glow Lamp," photographic reproduction depicts a man at a workbench sealing platinum wires into an incandescent light bulb. Information below the image explains how…

Entitled "A Wonderful Result of Prolonged Chemical Action," photographic reproduction depicts stalactites and stalagmites in the caves at Cheddar, Somerset, England. Accompanying text describes how the growths are a…

This illustration depicts the visible solar spectrum compared to the visible spectrums of sodium, barium, strontium and hydrogen. Explanatory text states that the illustration is purely an example as the actual solar…

Entitled "How the Microscope Reveals Adulteration," photographic reproduction depicts arrowroot adulterated with rice starch. Both under magnification, the left image illustrates rice starch with the right side showing…

General view of two unidentified individuals seated at a laboratory bench in the so-called "chemistry room" at Park College (later Park University) located in Parkville, Missouri. Assorted laboratory glassware,…

Photograph depicting male and female chemistry students in a laboratory at an unidentified school or college. The students are grouped around several laboratory stations and are seen using test tubes and Bunsen burners…