the overtaking omnibus leaves the gate, the travellers are 1-5th of " a " ahead, and that it will take the omnibus 3 minutes to traverse this distance; "during which time" the travellers, he tells us, go 1-15th of " a " (this should be 1-25th). The travellers being now 1-15th of " a " ahead, he concludes that the work remaining to be done is for the travellers to go 1-60th of " a ," while the omnibus goes 1-12th. The principle is correct, and might have been applied earlier.
CLASS LIST.
I.
Balbus.
Delta.
ANSWERS TO KNOT IX.
§ 1. The Buckets.
Problem.—Lardner states that a solid, immersed in a fluid, displaces an amount equal to itself in bulk. How can this be true of a small bucket floating in a larger one?
Solution.—Lardner means, by "displaces," "occupies a space which might