"Nuthin' ter prevent fur's I can see."
"Is the Yukon froze over yet?" Jack asked.
"Sure it is wid five or six inches uv ice on it. If it wasn't fer the snow yer could make foine time on skates, but thar's apt ter be a big snow storm iny time now."
"How cold do you boys think it is now?" the captain asked.
"Must be pretty near down to freezing," Jack replied.
Pete laughed.
"Did you notice the thermometer when you went out?" the captain asked.
"Ut was ten below."
"You mean below zero?" Jack asked doubtfully.
"Sure I do."