• More than £75,000, rather than $75,000, has been raised by the developers of brewing robot Brewbot on Kickstarter (12 October, p 21),
• You may have experienced a feeling of déjà vu when attempting Engima 1770 (12 October, p 30). It was an earlier puzzle republished in error. Entries will be honoured and a winner picked in the usual way.
• In our look at the impact of the US government shutdown on disease control work (12 october, p 8), we should have said that there were 75 cases of cholera in the Mexican state of Hidalgo.
