Stories by C. L. Stong

How to cultivate the slime molds and perform experiments on them

Deep-sky photographs with a 35-millimeter camera, and more about the homemade laser

How to isolate from samples of topsoil microorganisms that secrete antibiotics

An electrometer, a temperature-control apparatus and a simple electric motor

An apparatus for simulating high altitudes and testing their effects on small animals

How to measure raindrops, make snowflakes and simulate subatomic particle scattering

The semiconducting "Hall device" opens up a broad new field of experimentation

How to study the genetics of fruit flies with chromatograms viewed by ultraviolet lamp

Zany mechanical devices that draw the figures known as harmonograms

How the amateur can identify subatomic particles from their tracks in photographs

On collecting and preserving animals that live along the edge of the sea

On constructing and using a photoelectric colorimeter for various chemical analyses

On a paradoxical pump, reversing cubes, vortex rings and various other matters

Mainly on simulating gravitational fields with droplets of water on a soap bubble

Moir patterns provide both recreation and some analogues for solving problems

Experiments in phototaxis: the response of organisms to changes in illumination

How a persevering amateur can build a gas laser in the home

Extraction of growth-promoting substances from cantaloupe; tests with rolling balls

On constructing high-speed cameras for photographing fleeting events

How to make a series interferometer to observe various subtle phenomena

Blowing glass for the amateur laboratory is really not as difficult as it may seem

A tuning fork with electric drive can make an inexpensive and highly accurate clock

Two devices for listening in on underwater sound, and a sundial that tells clock time

How to photograph air currents in color and build an accurate Foucault pendulum