The Magic Isle in Toronto Bay: A short ferryboat ride brings steaming Torontonians to Centre Island where sandy beaches and cool parks help them forget the heat as they swim and canoe. Nature Conscripted in War on Worms: The spruce budworm, which yearly destroys much valuable timber, is itself destroyed by the parasitic dipterous fly, bred for the purpose in a Belleville laboratory. Students Learn Lessons in the Sky: High school students at Buckingham, Québec, put their study of aerodynamics into practice as they pilot gliders at the local airfield.