I read "about the [claimed] prevalence of using existing words to describe new scientific phenomena which grew up around the 1830s onwards until about 1890. Wherever possible, anything new from science or industry was named using the Queen's English. None of that foreign muck in our language, thank you, sir!"
Don't know whether I agree with all of it

Interesting, CK. Let's see what we can find supporting or contrary to the theory you read.

some quick thoughts, to which others can add:
supporting: "railroad" (shortly before the period in question)
contrary: "telegraph". are "vaccination" and "telephone" within the period?