In 1879, the Pavilion Hall was built. It included a glass conservatory and was also used for concerts and social events. Oscar Wilde gave a lecture here in May 1882. The Hall burned down in 1902. It was replaced by the existing Victorian style conservatory known as the Palm House in 1910. \ http://en.wikipedia.org/wiki/Allan_Gardens 

December 8 and 9, 1884 and February 14, 1885

"Horticultural Gardens Toronto" by Frank William Micklethwaite - This image is available from the City of Toronto Archives, listed under the archival citation Fonds 1478, Item 5.This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required.

Licensed under Public Domain via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Horticultural_Gardens_Toronto.jpg#mediaviewer/File:Horticultural_Gardens_Toronto.jpg