When The Boy (Harold Lloyd) places the baby (aka, The Annoyance) on the sofa, the baby rolls forward onto its stomach. In the next shot, the baby is back on its back; it would not yet have the core strength to roll onto its back at that age.
The Boy (Harold Lloyd) and The Girl (Mildred Davis) are reading the newspaper, and a closeup of a headline about the burglaries is shown. But, in the next medium shot, The Boy turns the newspaper over, and the headline is larger and different - "GERMANY INVADED!"