What was Jerome's interpretation of a proper boating costume for women?

" But a “boating costume,” it would be as well if all ladies would understand, ought to be a costume that can be worn in a boat, and not merely under a glass-case. It utterly spoils an excursion if you have folk in the boat who are thinking all the time a good deal more of their dress than of the trip. It was my misfortune once to go for a water picnic with two ladies of this kind. We did have a lively time!"