can you tell me why in the pampas , ay and elsewhere , there are bats that come out at night and open the veins of cattle and horses and suck dry their veins , how in some islands of the western seas there are bats which hang on the trees all day , and those who have seen describe as like giant nuts or pods , and that when the sailors sleep on the deck , because that it is hot , flit down on them and then , and then in the morning are found dead women , white as even mister lucas was ? '