Khaki is a strong cotton or wool fabric of a dull brownish-yellow colour, used especially in military clothing.
Platoon means a group of people or things that work together under a leader.
Examples can be:
A platoon of soldiers, which has ~16 - 50 soldiers
A platoon of tanks, which has ~4 - 9 tanks
etc.
hope this helps
Dr. Lanyon has learned damaging new information about Dr. Jekyll. I know this because after Utterson asks if Lanyon has seen Dr Jekyll, his face changes and he says he never wants to see him again.
