18th century immigrant ships - provisions, hardships, indentured servant process

In October, 1750 Gottlieb Mittelberger arrived at Philadelphia (1st image 1761) after a grueling 5 month voyage which involved drinking black water full of worms and ship's biscuits "full of red worms and spiders' nests."  The harsh conditions on the overcrowded ships resulted in illness, death and for many families, being sold separately as indentured servants, possibly never to see each other again.