"Radiocite can be mounted like any other crystal; it may be clamped between springs, but it is best to set it in Hugonium soft metal.The "Electrical Experimenter" was published by Experimenter Publishing. It was an 11 x 8.5 inches Magazine that competed with Modern Electronics in the 1920s. It was launched in 1913, and had no advertisements. It was subsidized almost wholly by the Electro-Importing Company. It's editors were Harry Winfield Secor and Hugo Gernsback. Hugo Gernsback had emigrated from Luxembourg in 1905 at the age of 21. As early as 1910 Secor had been publishing electrical essays in Gernsback's magazines. Hugo's younger brother, Sidney emigrated around 1920 and became the secretary of the Electro-Importing Company, the company that sold Hugonium (among other electrical supplies and products both real and imagined.)
Whether it worked or not, Hugonium addressed a real problem. Admittedly, it was difficult to find a good spot on the crystal to rectify. But, it was even harder to keep your cats-whisker on that exact spot. There were 101 different ways to mount the whisker and maybe 3 to mount the crystal. None were fool-proof. Most were bogus, crude, haphazard or unreliable. It was the weak link in a hobby that was slowly becoming a commercial enterprise. My earliest confirmed ad for Hugonium is again from the Electro-Importing company recommended Hugonium in a 1912 Wireless Lesson booklet. That one is published by Electro-Importing but copyrighted to K. I. Co. More here.
"For the utilizing of this universal detector for other crystals which do not require pointed contacts, a flat metal disc which can be screwed on the pointed contact, is supplied. Thus the detector can be used for any type of crystal which requires either form of contact. This detector, which is supplied by the Electro-Importing Company, uses the Hugonium compound for holding the crystal, as described above."I thought that Hugonium might be a long lost snake-oil product but I found a more recent reference to it in a Book titled "Electric Relays" by Vladmir Gurevich. It was published as recently as 2006. He described it as a solder or low heat alloy for mounting a silicon detector. But that reference is an outlier, most references date to 1920 or earlier. Such as "The How and Why of Radio Apparatus" by Harry Winfield Secor, published in 1920 by Experimenter Publishing. It makes s single reference:
Amazing Stories." It's interesting to note that he also founded the radio station WRNY. I'll tell that story another time."The copper pyrite crystal is mounted in a cup mounted on a spring-actuated rod provided with a suitable knob, by which it can be swung in any direction. Zincite crystals are mounted in a large cup containing several pockets, the mounting of both of the minerals being effected with a low fusing solder, Wood's metal or Hugonium alloy"