Christian says: I cannot go so fast as I would, by reason of this
Burden that is upon my back. (43)
Now I saw in my Dream, that just as they had ended this talk, they
drew near to a very miry Slough, that was in the midst of the plain;
and they, being heedless, did both fall suddenly into the bog. The name
of the slough was Dispond. Here therefore they wallowed for a time,
being grievously bedaubed with the dirt; and Christian, because of the
Burden that was on his back, began to sink in the mire. (44)
I found the section -- it is paragraph 44.
Bartleby link: http://www.bartleby.com/15/1/101.html
Apples of Gold link:
http://www.applesofgold.co.uk/The_Slough_of_despond.htm