 In contrast, Boyle’s method prescribed that instead of bringing causal principles to an experiment and expecting to explain some phenomenon by appeal to those principles, one should attempt to arrive at a supposition that would explain a phenomenon only after repeated, careful experiments. Thomas Sprat detailed the care taken in the design of experiments and the manner in which Royal Society members were formed into committees that shared parts of an experiment so that “[b]y this union of eyes, and hands” they were able to gain “a full comprehension of the object in all its appearances” (Sprat 1667: 85).