Lectures de potentia restitutiva, or Of spring explaining the power of springing bodies. To which are added some collections viz. A description of Dr. Pappins wind-fountain and force-pump. Mr. Young’s observation concerning natural fountains. Some other considerations concerning that subject. Captain Sturmy’s remarks of a subterraneous cave and cistern. Mr. G.T. observations made on the Pike of Teneriff, 1674. Some reflections and conjectures occasioned thereupon. A relation of a late eruption in the Isle of Palma. By Robert Hooke. S.R.S.
