Statical essays : containing hæmastaticks, or, an account of some hydraulick and hydrostatical experiments made on the blood and blood vessels of animals : also an account of some experiments on stones in the kidneys and bladder : with an enquiry into the nature these anomalous concretions : to which is added an appendix containing observations and experiments relating to several subjects in the first volume : the greatest part of which were read at several meetings before the Royal Society : with an index to both volumes : vol. II /