I agree that the dot is E
and further suggest that the trigraph: 3}.
is maybe the word "the"
(at the beginning of the second line of the early sample and again in the middle of the third line.
The same trigraph appears later in the same text, so I would agree with that. Berlie's text seems more like a list, so it would make sense that it wouldn't appear in that.
Following that logic though, it adds a complication. 3 appears very infrequently in the text, but "t" is the second most commonly used letter in the English letter. Given this, my guess would be that certain symbols, like "3}" represent specific digraphs like "th".
Also, we could just ask someone smarter, yeah.