Chapter 2 of 5 - The Kohan Gadol's Yom Kippur Garments:

This chapter discusses the clothing of the Kohen Gadol on this day. For the regular Temple services, the Kohen Gadol wore his normal “golden” garments while the services unique to Yom Kippur were performed with special “white”garments.

It also goes through a list of Temple services which the Kohen Gadol performed on Yom Kippur as well as the confessions of Yom Kippur and their procedure.