Schulze's Mode of Intercepting the
Germinal Matter of the Air, 206.
Schwann's (Professor) Jubilee, 208.
Science of Microscopy, Is there a, 365.
Scientific Evening, 162, 392.
Sections, thin, of Objects of different
consistency, the Preparation of, 274.
Selection of Food, Apparent discrimina-
tive power in the, by a Heliozoon,
215.

Septic Organism, the Life-History of a
minute, 203.

Septicity of Putrefied Blood, 279.
"Simple Device" for the Illumination
of Balsam-mounted Objects, on a,
246.

Slack, Henry J., On the Visibility and
Optical Aspects of Hairs viewed from
a Distance, 318.
Slides and Cover-glasses, Cleaning, 295.
"New" Box for Microscopic,

, a
201.

Microscopical, of Lichens, 379.

-, a new Postal Box for, 201.
Soirée of the Chemical Society, the, 149.
Sorby, H. C., the President's Address, 1.
Spider, a Fossil, 26.

VOL. I.

Note on the Effect produced
on P. angulatum and other Test
Objects by excluding the Central
Dioptric Beam of Light, 186.
Stewart, Charles, on a new Coral,
Stylaster stellulatus; and Note on
Tubipora musica, 41.

Sting of the Honey Bee, the, 367.
Stokes, Professor G. G., on the Question
of a Theoretical Limit to the Apertures
of Microscopic Objectives, 139.
Stomata, part played by the, in the
Exhalation and Inhalation of Aque-
ous Vapours by the Leaves, 334.
Stromatopora and its Allies, the minute
Structure of, 285.

as distinguished from Millepora,
208.
Stromatoporidæ, the Microscopic Struc-
ture of the, 219, 364.
Structure of Blood-corpuscles, 364.
and Development of Sponges, the,
223.

Microscopic, of the Stromato-
poridæ, the, 219.

of the Brain in different Orders of
Insects, the, 271.

of the Coloured Blood-corpuscles
of Amphiuma tridactylum, the Frog,
and Man, the, 57, 97.

the minute, of Stromatopora and
its Allies, 285.

2 F

ment of the, 283.

Terricolous Rhizopoda, 202.

Terebella, Embryo of, Wartelia wrongly
considered as the, 355.

Termination of the Nerves in the
Striated Muscles, the, 348.
Tests, the Finest-lined Balsamed Dia-
tomaceous, Method of Resolving, 45.
Test Object for Histologists, 148.

201.

Objects, Apparatus for Resolving,

Effect produced on P.
angulatum and other, by excluding
the Central Dioptric Beam of Light,
186.
Thermal Death Point of a minute
Septic Organism, Experiments made
to determine its, 203.
Thin Covering Glass, 298.

Sections of Objects of different
consistency, the Preparation of, 274.
Tolles' Objective, on the Results of a
Computation relating to, 142.

Toxic Matter connected with Typhoid
and other Enteric Diseases, on the
Detection of, 33.

"Transporter" of Professor Monnier,
the, 265.

Trap, Microscopic, for a Rover, 81.
Trembley's Experiments on turning a

Hydra inside out, 249.
Trichina, searching for, 26.
Trichodonopsis paradoxa, 361.
Tubipora musica, Note on, 41.
Turbellaria and Echinodermata, a new
Class of Animals parasitic on, on the
Orthonectida, 23.

Typhoid and other Enteric Diseases,
Toxic Matter connected with, on the
Detection of, 33.

U.

"Ultimate Limit of Vision," 169, 337.
Unit of Micrometry, 254, 310, 353.
the proposed Micro-Metric, 353.

V.

Vacuoles, the Contractile, of the In-
fusoria, Physiology of the, 259.
Vaucheria, a Parasite of Notommata
Werneckii, 296.

Vegetable Physiology, Borax in, 299.
Vernier applied to the Microscope, 299.
Vibrion, new Aerobic, 292.

Visibility and Optical Aspects of Hairs
viewed from a Distance, on the, 318.
Vision, Ultimate Limit of, 169, 337.
Microscopic Limits of, 379.

W.

Ward, F. H., Improvements in the
Micro-spectroscope, 326.

Wartelia, a new genus of Annelida,
355.

Water-lens Microscope, a, 223.
Water, Focussing under, Protecting
Cap for, 283.

Wenham, F. H., on the Measurement
of the Angle of Aperture of Objec-
tives, 321.

White of Egg as an Imbedding Sub-
stance, 258.
Woodward, J. J., Lieut.-Col., Further

Remarks on a "Simple Device" for
the Illumination of Balsam-mounted
Objects for Examination with Im-
mersion Objectives whose Balsam
Angle is 90° or upwards, 246.
Worms, the Hepatic Organ in the, on
a rare Form of, 366.