The frame riding plow has its wheels attached to a frame which is connected to the plow beam.
Illustrated is a simple propagating frame. It is used for propagating nepenthes, dracenas, and other…
Nephrolepis bostoniensis is a free growing fern with dark green, spreading leaves. It is good as a pot…
Nephrolepis magnifica is a free grower of open habit. The leaves are erect and fifteen inches long.
Nymphaea tetragona is a free bloomer and the smallest nymphaea in cultivation. The flowers open for…
A picture of how the shafts in the Carmania are held in place. The shafts connect the engines to the…
A hand slicer used to cut large items used in the chemistry classroom. This slicer is similar to smaller…
The interior of a jar mill, which is used to convert hard substances, like the porcelain balls in the…
Another style of still. This picture shows what the interior of a still looks like lends greater insight…
A diagram of a cross-section of a power station at the South Side Elevated Railway Company in Chicago.…
A picture of a 650-kilowatt direct-connected generator. This compound-wound generator, also known as…
A shunt is an electrical component used to allow electric current to flow from one point to the circuit.…
A picture of a railway switchboard that handles 500-volt direct currents. The switchboard consists of…
The inner workings of a rheostat (resistance box). Rheostat contacts (1, 2, 3) are arranged along the…
A three-way switch that was used to cut the headlights of a trolley and subsequently turn on the taillights.…
Image A is of bacteria that needs air to grow. Image B is of bacteria that do not need air to grow.
A barometer is a device used to measure the pressure of the atmosphere. A mercurial barometer, picture…
An Image of an esophagus showing how a mass of food, or bolus, passes through the esophagus into the…
Three sections of smooth muscle. M C is muscle cells and N is nucleus. Smooth muscles are slow to contract.…
The plans of the undercarriage of a long-framed truck, or lorry, in Britain. The image to the left is…
A full frame border of a spider and her web. Suitable for Halloween and other spooky occasions. Illustrated…
Showing leakage current through the frame of a machine which is insulated from ground.
The path of current through person receiving a shock from the frame of a machine insulated from the…
Antioch, a city in Syria on the river Orontes. It was founded by Seleucus Nicator, and was hailed by…
This illustration shows a fret saw in use. The blade is a thread of metal with teeth, set in a 'U'-shaped…
This illustration shows various types of gladiators, each type with with his specific weapons attributed…
This illustration shows a frame with cutting wires, and a machine capable of cutting 20,000 glue cakes…
This illustration shows a drying frame and drying rack used in glue manufacturing.
Only suitable for inferior purposes, Ledged Doors are made of narrow vertical boards, connected by three…
Framed and braced doors consist of of a frame of strengthened by a middle horizontal piece, or 'rail',…
A six-panelled door is used mostly in the construction of housing the uppermost pair of panels are termed…
After the carding process in the manufacturing of jute is completed, the jute is taken into the drawing…
This illustration shows the arrangement of loops in an ordinary web made on a hand-frame.
A genus of stag-beetle of rather small size, chiefly characterized by the distinctness of the sixth…
Platynus maculicolis, enlarged picture. Platynus is a genus of carboid, meaning active and predacious,…
A team of two oxen pull a plough across a field. Trees and a fence frame the field.