From SEVEN ENGLISH CITIES By W. D. Howells:
I have tried to give some notion of the fond behavior of the arriving Americans in the hotels; no art can give the impression of their exceeding multitude. Expresses, panting with as much impatience as the disciplined English expresses ever suffer themselves to show, await them in the stations, which are effectively parts of the great hotels, and whir away to London with them as soon as they can drive up from the steamer; but many remain to rest, to get the sea out of their heads and legs, and to prepare their spirits for adjustment to the novel conditions. These the successive trains carry into the heart of the land everywhere, these and their baggage, to which they continue attached by their very heart-strings, invisibly stretching from their first-class corridor compartments to the different luggage-vans.
I can't understand the structure, hence the exact meaning, of the bolded clauses:
Is "These the successive trains carry into the heart of the land everywhere" parsed as "These(meaning Americans) (that the successive trains carry into the heart of the land everywhere)"? But if so, where are other components of the sentence such as verb after "these"?
Is "to which they continue attached by their very heart-strings" structured as "which they continue to be(which is omitted originally) attached by their very heart-strings"? Who is "they" here exactly? What is "which" refering to here?