H.A.P Littledale lectured - but I don't think he published.
Contact Goldsmith's Hall in London and they may details.
Not sure if he published in book form, but he did file a patent
application for his “eutectic soldering” method, ie granulation
method. The patent paperwork has a lot of the details of what he
worked out. Somewhere, in a box in the basement, I suspect, I had a
zerox copy of that paperwork, obtained during a long ago jewelery
class. If I got a copy, there must be others around too. And I have
a vague memory that at least some of the texts of his lectures were
transcribed and published, as that, too, I recall seeing as a
chapter in someone elses publication. Again, when I saw it, it was a
dim zerox of the original, so I can’t tell you from whence it was
Not much help, other than to suggest that a continued search would
be potentially fruitful…