_Reader._ Did not Saul see the ghost of Samuel? _Büchner._ “All that has been narrated of the visits of departed spirits is sheer nonsense; never has a dead man returned to this world. There are neither table‐spirits nor any other spirits” (p. 153). _Reader._ How can you account for such a singular assertion? _Büchner._ “The naturalist entertains, from observation and experience, no doubt as to these truths; a constant intercourse with nature and its laws has convinced him that they admit of no exception” (p. 153). _Reader._ This is not true. Naturalists, with their observation and experience of natural things, do not and cannot reject facts of a higher order, though they have not observed them. Their non‐observation is no argument, especially when we have other witnesses of the facts, and when we know that the naturalists of your school are pledged to materialism, and therefore shut their eyes to the facts which oppose their theory. The majority of educated persons admit the facts; not indeed _all_ the facts narrated, but many of them which no critical rule allows us to reject. _Büchner._ Where are those facts? “The scientific impossibility of clairvoyance has been confirmed by an examination of the facts by sober and unprejudiced observers, and were proved to be deceptions and illusions” (p. 153). _Reader._ Of course there are juggleries and impositions; but what of that? Would you maintain that there can be no doctors because there are quacks? I appeal to your logic. _Büchner._ “The faculty of medicine of Paris many years ago took the trouble of submitting a number of such cases to a scientific examination; they were all proved to be deceptions, nor could a single case be established of a perception without the use of the senses. In 1837 the same academy offered a prize of 3,000 francs to any one who could read through a board. No one gained the prize” (_ibid._)