Sentence:  The morbid appearances left in the body after poisoning with carbonic acid gas have been chiefly observed in persons killed by charcoal vapour. [...] the heart and great veins are <WSD>gorged</WSD> with black fluid blood; the eyes are generally glistening and prominent, the face red, and the tongue protruding and black. <WSD>Gorging</WSD> of the cerebral vessels seems to be very common. 
Meaning of the word marked with <WSD> tags:  To fill up (an organ, a vein, etc.); to block up or obstruct;  of ice: to choke or fill a channel or passage, causing an obstruction.