In M&S six mixed size eggs cost £1.30 and six large eggs cost £2.70.
The average large egg is 22% heavier than the average medium egg, if you don’t mind I wont show my calculations, but the yolks hardly differ in size. Eggs are measured by weight not volume, at least in the UK. So you pay over 100% more for more weight and volume of albumen if you choose an M&S large egg. This may be because some purchasers discard the yolks to make meringues or, more likely, to make supposedly healthier “whites only” scrambled eggs. I had the latter in San Francisco and didn’t see the point in leaving out the nutritious bit.
On visits to Bushy Park I didn’t see Bushy House because it is screened by trees and only the top two stories are just visible. But it is of interest historically, architecturally and as an arbiter of egg sizing. “Bushy House is a Grade II* listed former residence of King William IV and Queen Adelaide in Teddington, London, which Lord Halifax had constructed for his own enjoyment on the site of a previous house … between 1714 and 1715.” (Wikipedia)
Pevsner describes the house as “plain but substantial” – just the sort of house to be demolished in the mid 20th century. It escaped the wrecking ball because it was given by the Crown to the government in 1900 to house The National Physical Laboratory (NPL), making it one of the oldest metrology institutes in the world. Do not confuse metrology and meteorology. Pevsner says the chief interest of the interior is that it preserves the plan of the earlier house, circa 1665. The NPL have made some not detrimental interventions of which Pevsner mentions “the Alfred Yarrow ship-towing tank of 1911, 500 ft long under a north-light roof. The first such testing facility for commercial ship models in Britain.” It was used by Barnes Wallis in 1942 to test his bouncing bomb.
