308 
INDEX. 
Diatom-lines, on Dr. Schumann's For- 
mulse for. By W. J. Hickie, 6. 
Diatom, an Animal-like, 255. 
Diatoms, tlie Examination of Coal for, 
291. 
Disease, the Microscopic Germ Theory 
of. By Dr. H. C. Bastian, 65, 129. 
Dust, Atmospheric, 141. 
Volcanic, of Barbadoes, the Struc- 
ture of, 143. 
Dytiscus, the Functions of the Frontal 
Ganglion in, 141. 
E. 
Edwakdes, Eev. D., on the Unit of 
Linear Measurement, 49. 
EiNEE, Dr. T. H., on the Structure and 
Motion of the Spermatozoa, 25. 
Epithelium, on Conjoined. By Dr. S. 
Martyn, 59. 
F. 
Fleming, Dr. W. J., a Modification of 
Dr. Rutherford's Freezing Micro- 
tome, 79. 
Fripp's Translation of Professor Abbe's 
Paper on the Microscope, Extracts 
from, 191, 245. 
Frustulia Saxonica, Note on the Mark- 
ings of. By Dr. J. J. Woodward, 
274, 279. 
Fungi, the Fecundation of Thecaspore, 
203. 
G. 
Glass ruby-tinted with Gold, seen 
with the Micro-spectroscope, 207. 
H. 
Harrington, Professor, on the Cha- 
racter of the Starch-granule, 18. 
Hickie, W. J., on Dr. Schumann's 
Formulae for Diatom-lines, 6, 
High Powers, on a New Mode of Illu- 
minating for. By Dr. Whittell, 109. 
Hudson, Dr. C. T., on Cephalosiphon 
and a New Infusorion, 165. 
on a New Melicerta, 225. 
I. 
Immersion Objective, Poweil and Lea- 
land's New itli, 207. 
Infiammation of Connective Tissue, the 
Microscopic Appearances in, 19. 
Infusoria, Recent Progress in our 
Knowledge of the Ciliate. By G. J. 
Allman, M.D., 170. 
Instruments, Optical, Professor Abbe's 
New Book on, 208. 
J. 
Jones, Mr. W. W., on an Instrument 
for Cleaning Thin Covering Glass, 
292. 
K. 
Keith, Professor R., the Slit as an Aid 
in Measuring Angular Aperture, 284. 
KiTTON, F., on the Number of Strise on 
the Diatoms on MoUer's Probe- 
Platte, 45. 
L. 
Leidy, Professor, Observations on some 
Marine Rhizopods, 26. 
Life, on the Origin of. By Dr. L. S. 
Beale, 81. 
Limulus, the Development of the 
Nervous System in, 141. 
Lobster, Development of the European, 
203. 
Lymphatics of the Choroid and Retina, 
148. 
M. 
Martyn, Dr. S., on Conjoined Epithe- 
lium, 59. 
Measurement, on the Unit of Linear. 
By Rev. D. Edwardes, 49. 
Melicerta, a New Species of. By 
C. T. Hudson, LL.D., 225. 
tyro, 225. 
MiCHELS, John, the Microscope and 
its Misinterpretations, 52. 
Micro-ophthalmoscope, a, 91. 
Micro-photographs, Anatomical, 207. 
Microscope, the, and its Misinterpre- 
tations. By John Michels, 52. 
Microscopic Work of the ' Challenger.' 
A Letter from Professor Huxley to 
' Nature,' 288. 
Microscopy at the American Associa- 
tion, 91. 
at the Bristol Meeting of the 
British Association, 92. 
Microtome, a Modification of Dr. Ruth- 
erford's Freezing. By Dr. W. J. 
Fleming, 79. 
Mineralogy, Use of the Microscope in, 
257. 
Moths, Perforating Proboscis. By 
Henry J. Slack, 235. 
