, between which the lower wall of a hollow flexible will be found impossible to change its plane of rota- swered so far as it is possible to answer them, still it rubber sphere is clamped. The upper. wall of the tion by the application of any ordinary amount of is difficult to reach far beyond the… … perforated above the lower pair of collars to admit of The top has already risen to some importance as a sure is applied will rise rather than yield to the pres- filling the hollow ball with water. When the ball is scientific toy, but it is worthy of being raised to the sure. filled or partly…
Internet Archive · Public domain (published before 1931). Free to use for anything.
