JACK SELLS THE COW ONCE upon a time there was a poor widow who lived in a little cottage with her only son Jack. Jack was a giddy, thoughtless boy, but very kind-hearted and affectionate. There had been a hard winter, and after it the poor... Read more of Jack And The Beanstalk at Children Stories.caInformational Site Network Informational
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Articles from The Science Of Fingerprints

Questionable Patterns

How To Take Inked Fingerprints

Types Of Patterns

Latent Fingerprints

Classification Of Bandaged Or Imprinted Fingers

The Identification Division Of The Fbi

Technical Consideration

Advanced Decomposition

The Tented Arch

General Photography


The Plain Whorl





The plain whorl consists of the simplest form of whorl construction
and is the most common of the whorl subdivisions. It is designated by
the symbol W for both general classification and extension purposes.

The plain whorl has two deltas and at least one ridge making a
complete circuit, which may be spiral, oval, circular, or any variant
of a circle. An imaginary line drawn between the two deltas must touch
or cross at least one of the recurving ridges within the inner pattern
area. A recurving ridge, however, which has an appendage connected
with it in the line of flow cannot be construed as a circuit. An
appendage connected at that point is considered to spoil the recurve
on that side.

Figures 194 to 211 are typical examples of the plain whorl type.
Figure 212 is, however, a loop, as the circuit is spoiled on one side
by an appendage.










Next: Central Pocket Loop

Previous: The Whorl



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