THE Microscope. 235 
Table No. 7.—T. H. Hamlin, M. D., Auburn, N. Y. Mounting 
opaque objects in wooden cells. 
‘Table No. 8.—Gen. Wm. Humphrey, Adrian, Mich. Cutting veg- 
etable sections. ; 
Table No. 9.—Prof J. KE. Hyatt, Morrisania, N. Y. Showing mul- 
tiple images in compound eyes of insects. 
Table No. 10.—F. L. James, M. D., St. Louis, Mo. Silvering 
mirrors. 
Table No. 12.—Prof. L. A. Lattimore, LL. D, Rochester, N. Y. 
Methods of separating from fluids, floating, suspended, or sedimentar. 
substances for microscopic examination. 
Table No. 13.—Jos. Levi, Esq., Rochester, N. Y. Making wax 
cells for transparent and Opaque objects. 
Table No. 16 —Prof. Henry Mills, Buffalo, N. Y. How to prepare 
sponges for mounting spicules. 
Table No. 17.—A. C. Mercer, M. D., F. R. M.S., Syracuse, N. Y: 
Section cutting with freezing microtome. 
Table No. 19.—Wm. Rebaz, Rochester, N. Y. Making cells of 
shellac varnish. 
Table No. 22.—Prof. C. H. Stowell, M. D., F. R. M.S., Ann Ar- 
bor. Counting blood corpuscles. Mrs. Louisa R. Stowell, M. S., 
Aun Arbor. Showing circulation of protoplasm in the vegetable 
kingdom. 
Table No. 23.—J.O. Stillson, A. M., M. D., Indianapolis. Prepar- 
ing and mounting insects. 
Table No. 25.—Chas. Shepard, M. D., Grand Rapids, Mich. 
Mounting mineral specimens. 
Table No. 27.—Prof. W. J. White, Kalamazoo, Mich. Trans- 
ferring microphotographs from charms to slides. 
Table No. 28.—E. J. Whitney, Rochester, N. Y. Rapid mounting 
of opaque objects. 
SCIENTIFIC FALLACIES. 
We believe it was old Dr. Johnson who said, “‘ Let any fool, 
preaching no matter how absurd a doctrine, address a crowd at 
the street corner, and he will be sure to find some disciples.” 
So it seems to be to-day in the world of science. Any one 
who claims to have made a discovery, and on the strength of it 
brings out a novel theory, immediately finds a train of disciples 
drawn from the crowd of those who, like the Athenians of yore, 
are ever anxious to see and hear some new thing. 
An instance in point is Dr. Koch’s famous bacillous theory. 
