HITCHCOCK, R.-Preservation of Museum specimens.

[Description of the Naples Zoological Station specimens at the Fisheries Exhibition. The living creatures are plunged into a solution of iodine or a strong solution of corrosive sublimate and transferred to dilute spirit, in which they are permanently preserved.]

Amer. Mon. Micr. Journ., IV. (1883) pp. 217-8. Exorbitant prices of mounted specimens of microscopic objects Amer. Mon. Micr. Journ., IV. (1883) p. 218.

in America.

JACOBS, F. O.-How to make a section of Tooth with pulp.

The Microscope, IV. (1884) pp. 8–9.

KELLICOTT, D. S.-Notes on Protozoa. No. 2. [Agrees with the opinion of H. Gilliatt, III. (1883) p. 861, that the needlelike bodies seen when Paramecium is treated with tannin and glycerine are not cilia but trichocysts.]

Bull. Buffalo Naturalists' Field Club, I. (1883) pp. 109-17. KINGSLEY, J. S.-Rapid Microscopic Mounting.

[Describes Giesbrecht's and Caldwell's methods of series preparations.] Science Record, II. (1883) pp. 1–2.

Glycerine Mounting.

["One great difficulty in its use is in fastening the cover-glass firmly. Various modes of procedure have been described, possibly the best the writer has seen in print being that which employs paraffin. A still better method is to use a very small amount of glycerine, so little in fact that when the cover is applied the margin of the glycerine does not reach the edge of the glass. Then with a fine brush, balsam or dammar dissolved in benzol is allowed to run in under the edge of the coverglass, and after becoming hard the superfluous balsam is cleaned off and the slide finished in any desired manner."]

Science Record, II. (1883) p. 17. KÖNIKE, F.-Die zweckmässigste Wasser-regeneration der Aquarien mit microscopischen Sachen. (The most effective mode of regenerating the water of Aquaria having microscopical objects.) [Post.]

Zool. Anzeig., VI. (1883) pp. 638-9. Low-SERGEANT, W. [Low-Sarjeant p. cxxxi-Low-Sargeant wrapper].—New process for Preserving Plants. [Post.]

Proc. and Trans. Croydon Micr. and Nat. Hist. Club, 1882-1883, pp. cii.-iii. MAGGI, L.-Technica Protistologica. Cloruro di Palladio. (Protistological Technics. Chloride of Palladium.) Bollett. Scientif., V. (1883) pp. 48-51. MAYER, P.-Einfache Methode zum Aufkleben mikroskopischer Schnitte. (Simple method of fixing microscopical sections.) [Post.]

MT. Zool. Stat. Neapel, IV. (1883) pp. 521-2. MCCALLA, A.-President's Address to the 6th Annual Meeting of the American Society of Microscopists. The Verification of Microscopic Observation. [Vol. III. (1883) p. 766.]

Proc. Amer. Soc. Micr., 6th Ann. Meeting, pp. 1-19.

MOREHOUSE, G. W.-A new Mounting Fluid. [Post.]

Amer. Mon. Micr. Journ., IV. (1883) pp. 234–5. MULLER, C. J.-The discrimination of Species of Wood by a microscopical examination of sections of branches.

Trans, Eastbourne Nat. Hist. Soc., I. (1883) pp. 4-12. PARIETTI, E.-Ricerche relative alla preparazione e conservazione di Bacteri e d'Infusori. (Researches on the preparation and preservation of Bacteria and Infusoria.)

Bollett, Scientif., V. (1883) pp. 95-6.

PETICOLAS' (C. L.) New Slides of Diatoms.

["Slide No. 1, Stauroneis acuta.-Microscopists are familiar with the beautiful effects of dark-field illumination upon certain diatoms. Some peculiarities of structure are shown by this method more clearly than by transmitted light. A recent gathering of St. acuta (Pleurostaurum acutum Grunow) has given me a sensation, although I have practised this method of illumination for years. With a 1/2 inch objective and a strong artificial light on dark field, this diatom seems literally to blaze, and surpasses in splendour the finest polariscope objects in my cabinet. With the light thrown across the short diameter, there is a strong resemblance to a section of ostrich tendon, only some peculiarity of striation seems to impart motion to the light, and the diatom seems on fire; across the long diameter the colour is changed to a brilliant sapphire.]

Amer. Mon. Micr. Journ., IV. (1883) p. 234.

PILLSBURY, J. H.-A new Microscope Slide Cabinet. [Post.]

Science Record, II. (1883) pp. 25–6 (2 figs.).

QUEEN, J. W. & Co.-Improved Slide Box.

[Covered with cloth instead of paper; inside of lid with numbered lines for
indexing.]
Micr. Bulletin, I. (1883) p. 7 (1 fig.).

R., D.-Classification and Labelling of Microscopical Objects.
[Suggestion that locality should be added to I. C. Thompson's labels, Vol. III.
(1883) p. 926.]

RALPH, T. S.-Thymol as a Polariscopic Object.

Sci.-Gossip, 1883, p. 276.

[A most splendid polariscopic object. If a very small piece, about the size of a mustard-seed (or perhaps two) is placed at the edge of a cover-glass on a slide (not under), and then made to melt, it will run under it in a very fine film and crystallize on cooling. But before this take place, it should be placed on the stage, with the polarizing apparatus ready, so as to watch the process of crystallization. The effects far exceed that of most polariscopic objects. The same specimen carefully remelted can be used over and over again.]

Journ. of Microscopy, III. (1884) pp. 31-2. RATABOUL, J.-Les Diatomées. Récolte et préparation. I. Récolte des Diatomées. (The Diatomacea. Collection and preparation. I. Collection of the Diatomaceæ.) (In part.) Journ. de Microgr., VII. (1883) pp. 644-6 (1 pl.). REINOLD, A. W., and A. W. RÜCKER.—Liquid Films and Molecular Magnitudes. [Post.] Proc. Roy. Soc., XXXV. (1883) pp. 149–51. RENSON, C.-Nouveau procédé de recherche des Trichines dans les Viandes. (New method of research for Trichine in meat.) [Post.] Bull. Soc. Belg. Micr., X. (1883) pp. 24-25. ROTHROCK, J. T.—Some microscopic distinctions between good and bad Timber of the same species.

Amer. Phil. Soc., Feb. 1883. Micr. News, III. (1883) p. 340.

ROTHWELL'S (W. G.) Educational Slides.
ROYSTON-PIGOTT, G. W.-Note on the structure of the Scales of Butterflies.
Trans. Eastbourne Nat. Hist. Soc., I. (1883) pp. 41-5.
RÜCKER, A. W.-See A. W. Reinold.

SCHAEFFER, E. M.-The Microscopical Study of the Crystallization of Allotropic
Sulphur.

[Contains directions for preparing.]

Amer. Mon. Micr. Journ., V. (1884) pp. 1-3. SCHNETZLER.-Notiz über Tanninreaction bei Süsswasseralgen. (Note on the reaction of tannin in the fresh-water Algæ.) [Post.]

SCOTT, W. B.-Imbedding in Egg-mass.

Bot. Centralbl., XVI. (1883) pp. 157--8.

[Ruge's improvement of Calberla's method. Cf. Vol. III. (1883), pp.

303-4.]

Science Record, III. (1883) pp. 41-2.

SLACK, H. J.-Pleasant Hours with the Microscope. [Muscular System of Insects.]

[Trichinæ.]

Knowledge, IV. (1883) pp. 316-7 (2 figs.), 383-4.
V. (1884), pp. 20–1 (2 figs.).

[Examination of atmospheric dust.]

pp. 51-2 (3 figs.).

STANLEY'S Stained Sections for use of students. [In tubes ready for mounting and previous examination, so that students can try the effect of reagents upon them before putting them up as permanent objects. A circular accompanies, detailing the method of mounting and what to observe in the finished slides.]

Micr. News, III. (1883) p. 340.

TARÁNEK, K. J.—Monographie der Nebeliden Böhmen's.

[Contains a note on preparing Fresh-water Rhizopoda. Post.]

Abh. K. Böhm. Gesell. Wiss., XI. (1882) Art. No. 8, iv. and 56 pp. (5 pls.). TAYLOR, T.-Freezing Microtome.

Proc. Amer. Assoc. Adv. Sci., 1881, pp. 119-21. THOMA, R.-Microtome à glissement et méthodes d'enrobage. (Sliding Microtome and methods of imbedding.)

[Same as ante, Vol. III. (1883) p. 298, and post.]

Journ. de Microgr., VII. (1883) pp. 576-83 (7 figs.), pp. 639-44 (1 fig.) THOMPSON, I. C.- Microscope Labels.

[Claim of priority over Mr. Quinn for the labels described Vol. III. (1883) p. 926.]

THOMSON, W.-The size of Atoms.

[Post.]

Micr. News, III. (1883) pp. 334-6.

Proc. Roy. Instit., X. (1883) pp. 185-213 (11 figs.).

VORCE, C. M.-The microscopical discrimination of Blood.

[Six propositions "generally and with rare exceptions true," setting forth
the author's "views of micrometry in general in relation to minute
objects, including blood."] Also comments by R. Hitchcock.

Amer. Mon. Micr. Journ., IV. (1883) pp. 223-5, 238-9; V. (1884) pp. 17-8.
Expanding the Blow-fly's Tongue. [Post.]

Amer. Mon. Micr. Journ., V. (1884) p. 12.

W., D. S.-Washing and mounting objects containing a considerable quantity of air. [Post.] Amer. Mon. Micr. Journ., V. (1884) p. 18.

WARD, E.-Mounts and Mounting.

[Abstract of the author's Microscopical Mounts and Mounting,' and 'Micro-crystallization.'] Amer. Mon. Micr. Journ., IV. (1883) pp. 149-56 (in part). WEST, T.-"Polariscope objects, with few exceptions, are merely pretty things, well enough calculated, in moderation, to relieve the solid bill of fare at a soirée or conversazione, but nothing whatever is to be learnt from them save that by certain arrangements of apparatus belonging to our Microscopes, some things become decked in gay colours; that is literally all."

[This statement will, we think, be generally recognized as very much too sweeping!-ED. J.R.M.S.]

Journ. of Microscopy, III. (1884) p. 47.

WHITMAN, C. O.—Recent improvements in Section-cutting. [Contains abstracts of Andres, Giesbrecht, and Mayer's section-smoother, III. (1883) p. 916-The registering micrometer-screw, III. (1883) p. 914 and supra, p. 153-The new object-holder, III. (1883) p. 915-An improvement in the carriers, III. (1883) p. 916-Type-metal boxes for imbedding, III. (1883) p. 913.]

Amer. Natural., XVII. (1883) pp. 1311-16 (3 figs.). WHITMAN, C. O.—Methods of preventing the rolling of microtomic sections. [Transverse knives, post. Schulze's section-smoother (1 fig.) III. (1883)

p. 450.]

Amer. Natural., XVIII. (1884) pp. 106–8 (1 fig.).

WOODWARD, A. L.-Unpressed mounting of the Tongue of the Blow-fly. ["While it is an easy matter to catch and decapitate your blow-fly, unfortunately he will not always protrude his tongue properly during the operation, and my experience is that the tongue remains for ever after fixed in the position that it happens to be in when life in the fly becomes extinct. To remedy this, I tried the plan of immersing the living insect in alcohol, and with perfectly satisfactory results. At the moment of death the tongue is forcibly protruded to its entire length. Even the short proboscis of the house-fly is satisfactorily displayed. I tried carbolic acid in the same way, but the results were not nearly so good, and, besides, alcohol is a much nicer fluid to handle."]

WRIGHT, L.-Microscopical Mounting.

Amer. Mon. Micr. Journ., IV. (1883) p. 239.

[Impossibility of procuring insect preparations "mounted in a really first

class manner," &c.]

Engl. Mech., XXXVIII. (1883) pp. 343-4 (2 figs.).

PROCEEDINGS OF THE SOCIETY.

MEETING OF 12TH DECEMBER, 1883, AT KING'S COLLEGE, STRAND, W.C., JAMES GLAISHER, ESQ., F.R.S., VICE-PRESIDENT, IN THE CHAIR.

The Minutes of the meeting of 14th November last were read and confirmed, and were signed by the Chairman.

The List of Donations (exclusive of exchanges and reprints) received since the last meeting, was submitted, and the thanks of the Society given to the donors.

Balbiani, G.-Leçons sur les Sporozoaires. viii. and 184 pp. (51 figs. and 5 pls.). 8vo, Paris, 1883

Ferguson, J.-The Microscope, its Revelations and Applications in Science and Art. viii. and 160 pp. 8vo, Edinburgh, 1858

From

The Author.

Mr. Crisp.

The Chairman said it was his painful duty to announce that since their last meeting, the death had occurred of one of their number, who during almost the whole of his life had been held in the highest esteem and respect by all microscopists. He referred to Mr. Hugh Powell, of the firm of Powell and Lealand. It was truly a ripe old age to which he had attained, but nevertheless it was always painful when at length the time of parting came, and both as a Society and as individuals, he was sure they must deeply regret the removal of one whom they had always held in such respect. It was by an unfortunate coincidence that it fell to his lot to announce to the same meeting the death of Mr. Powell's most distinguished rival in America, Mr. R. B. Tolles, of Boston, who had also done so much for the improvement of objectives. Peace be to both of them, with the kindliest feelings of sympathy towards their respective families, of every Fellow of the Society.

Mr. Crisp exhibited (1) Mr. H. P. Aylward's Microscope, having a swinging tail-piece rotating completely round the stage, so that the mirror and substage could be set in any required azimuth (p. 110); (2) a Microscope by Mr. A. McLaren, rotating upon the horse-shoe foot, so as to secure greater stability for the instrument when the body was inclined at any considerable angle (p. 111); (3) a Microscope by Herr F. W. Schieck (p. 112), with a number of objects inserted in the circumference of a revolving drum, so that each could be passed in turn beneath the objective. A translation of the inventor's description of the instrument and its advantages was read to the

Ser. 2-VOL. IV.

M