The only downside to eBay is the instability of stock--you never know what they'll have available because it's dependent on what people have in their throw-out pile at home.
Maybe they knew what kind of bait to throw out.
Following up this line of investigation, Major Ronald Ross in 1895 found that if a mosquito sucked blood containing the parasites they soon began to throw out flagellae, which broke away and became free; and in 1897 he discovered peculiar pigmented cells, which afterwards turned out to be the parasites of aestivo-autumnal malaria in an early stage of development, within the stomachwall of mosquitoes which had been fed on malarial blood.
The wooded hills to the northward throw out to the south and south-west long spurs, between which are the low valleys of several rivers and brooks.
The same ends may sometimes be effected by merely working fine soil in amongst the base of the stems, and giving them time to throw out roots before parting them.