Who are the dwarves in? What did each of them wear when calling on Bilbo?

"Carefully! Carefully!" he said. "It is not like you, Bilbo, to keep friends waiting on the mat, and then open the door like a pop-gun! Let me introduce Bifur, Bofur, Bombur, and especially Thorin!"

"At your service!" said Bifur, Bofur, and Bombur standing in a row. Then they hung up two yellow hoods and a pale green one; and also a sky-blue one with a long silver tassel. This last belonged to Thorin, an enormously important dwarf, in fact no other than the great Thorin Oakenshield himself, who was not at all pleased at falling flat on Bilbo's mat with Bifur, Bofur, and Bombur on top of him. For one thing Bombur was immensely fat and heavy. Thorin indeed was very haughty, and said nothing about service; but poor Mr. Baggins said he was sorry so many times, that at last he grunted "pray don't mention it," and stopped frowning.

"Now we are all here!" said Gandalf, looking at the row of thirteen hoods-the best detachable party hoods-and his own hat hanging on the pegs. "Quite a merry gathering!