I was but new risen from a bed of sickness ; and there was nothing in the state of our affairs to hearten me for much exertion ; travelling , as we did , over the most dismal deserts in Scotland , under a cloudy heaven , and with divided hearts among the travellers .
The travellers did not get along with one another. 
the passage mentions the travellers had "divided hearts" but that doesn't necessarily mean they didn't get along (it could just mean they disagreed on certain things). System probably is more sure about that passage meaning they didn't get along. 
( z1 get-along :polarity - :ARG1 ( z2 person :ARG0-of ( z3 travel ) ) :ARG2 z2 )