Within three weeks, the committee had received some 245 entries, including 38 international submissions from Australia, the Netherlands, Belgium, Hanover, Switzerland, Brunswick, Hamburg and France. Two designs, both in iron and glass, were singled out for praise—one by Richard Turner, co-designer of the Palm House at Kew, and the other by French architect Hector Horeau but despite the great number of submissions, the committee rejected them all. Turner was furious at the rejection, and reportedly badgered the commissioners for months afterwards, seeking compensation, but at an estimated £300,000, his design (like Horeau's) was too expensive. As a last resort the committee came up with a standby design of its own, for a brick building in the "rundbogenstil" by Donaldson, featuring a sheet-iron dome designed by Tunnel, but it was widely criticized and ridiculed when it was published in the newspapers. Adding to the committee's woes, the site for the Exhibition was still not confirmed. The preferred site was in Hyde Park, adjacent to Princes Gate near Pennington Road, but other sites considered included Wormwood Scrubs, Battersea Park, the Isle of Dogs, Victoria Park, and Regent's Park. Opponents of the scheme lobbied strenuously against the use of Hyde Park (and they were strongly supported by "The Times"). The most outspoken critic was arch-conservative Col. Charles de Laet Waldo Sibthorp; he denounced the Exhibition as "one of the greatest humbugs, frauds and absurdities ever known", and his trenchant opposition to both the Exhibition and its building continued even after it had closed.