Arthur Kollmann (1858–1941) "Felix Martin Oberländers Beiträge zur Urologie" (PDF file), ''SpringerLink'', part of ''Springer Science+Business Media'', 2006, webpage:
Springer-PDF
was a German medical researcher from

Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...

who studied the fingerprint characteristics of

friction ridge The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain. It is divided ...

s and volar pads. "Michele Triplett's Fingerprint Dictionary: K" (glossary), Michele Triplett, 2006, ''Fprints.nwlean.net'' webpage:
Fprints-K
. In the 1880s (1883, 1885), Kollmann was the first researcher to address the formation of friction ridges on the

fetus A fetus or foetus (; plural fetuses, feti, foetuses, or foeti) is the unborn offspring that develops from an animal embryo. Following embryonic development the fetal stage of development takes place. In human prenatal development, fetal dev ...

and the random physical stresses and tensions which may have played a part in their growth. Kollmann may have been the first researcher to study the development of friction ridges. He grouped the volar pads of humans and also grouped the volar pads of many primates. Kollmann is credited with establishing and then naming ten volar pads in humans, and he was the first to study epidermic markings in different races. Alfred R. Hale described Kollmann as the first researcher (1883) to suggest that mechanical stresses inherent in fetal growth may influence the ultimate dermatoglyphic configuration. He is buried in the Nordfriedhof, Leipzig.

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ridges and furrows
- fingerprint characteristics (03-08-2003). 1858 births 1941 deaths German medical researchers Scientists from Hamburg {{Germany-scientist-stub