whAt DoEs thE sEConD pArAgrAph mAinly DisCuss
A．slAtEr's ArrivAl in AmEriCA.
B．nEw york AnD thE Almy AnD Brown mill.
C．thE First thrEE months AnD AChiEvEmEnt oF A pArtnErship.
D．slAtEr's unDErstAnDing oF thE spinning proCEss.