Word: niggerhead
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Syntex uses a vegetable raw material, cabeza de negro (niggerhead), a Mexican wild vine whose lumpy, woody root contains a soapy-feeling compound called sapogenin. In its raw state sapogenin is not a hormone, but its molecule contains the basic steroid nucleus.*This can be separated by a simple process and built up chemically into any number of hormonelike compounds...
...Haines and the Alcan Highways surmounted the usual difficulties of wilderness construction, plus some special troubles native to the region. Muskeg and niggerhead swamps, hard to locate on the air maps, had to be skirted or heavily filled. North-country rivers looped their way all over the route...
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