"Small! Here's Jobling!" Small's head looks out of window too and nods to Jobling.
"Where have you sprung up from ?" inquires Mr.Guppy.
"From the market-gardens down by Deptford.

I can't stand it any longer.

I must enlist.

I say! I wish you'd lend me half a crown.

Upon my soul, I'm hungry." Jobling looks hungry and also has the appearance of having run to seed in the market-gardens down by Deptford.
"I say! Just throw out half a crown if you have got one to spare.