50 [ PSOGRESS OF MICROSCOPICAL SCIENCE. ['^Journal! jKar^^^^^^ 
growths or buds are formed. The first fibres have no transverse 
strise, are granular, and have many nuclei. Subsequently the nuclei 
decrease in number, and are arranged in regular alternations. The 
fibres at first flattened, become now cylindrical, acquire transverse 
Btriae, and their outlines are distinctly visible. The transition from 
old to new fibres is almost imperceptible. After the division of 
atrophic muscles, fatty degeneration of the connective tissue followed, 
the transverse stride were lost, the fibres became narrower and did not 
retain their smooth outlines. — Ibid. 
Colouring with HcEmatoxyline. — The following process for colouring 
microscopic preparations is described by H. Frey (first introduced 
by Dr. Bohmer, of Wiirzburg) : Of a solution of hsematoxyline in 
al3Solute alcohol (gr. xx in jss) 2-3 drachms are placed in a watch- 
glass, which is filled with a solution of alum, in distilled water 
(gr. ii in Ji). A violet colour is at once produced, in which pre- 
parations are placed for twelve or twenty-four hours. Then may 
follow a treatment with absolute alcohol, and acid. tart, in alcohol, again 
with alcohol, then with benzin or oil of turpentine. The preparation 
may be examined in ol. ricini, in which it acquires a high degree of 
transparency. Other methods may be used in applying this colour, 
but acids holding water and the common solutions of resins in 
chloroform must be avoided, as both are injurious to this colour. 
Haematoxyline-coloured preparations may be kept in glycerine. Pre- 
parations which have been treated with other re-agents, such as chromic 
acid, become blue. The colour adheres especially to the nuclei. The 
so-called Parme soluble, 1 in 1000 of water, yields a magnificent blue, 
passing into violet, and colouring the various tissues in a few minutes. 
After cleaning the preparation in water, it may be examined in 
glycerine. — Ihid. 
A new object-stage, that can be heated. — The table described in this 
paper, by Dr. A. Schlarewsky, is of the size of an ordinary microscope- 
table, consisting essentially of a brass box, perforated in the middle, 
and transformed by perpendicular partitions into a system of commu- 
nicating spaces. Two tables connect this box with a cylindrical 
reservoir, the fluid in which is heated by a spirit-lamp. One corner 
of the box is elongated for the reception of a thermometer ; from 
another corner issues a tube for conveying away the water into any 
convenient vessel. In consequence of the arrangement of the partitions, 
the moving liquid is forced to run in a given direction through all the 
parts of the box, and to flow at last round the bulb of the thermometer. 
Thus the whole box is heated everywhere at a uniform temperature. 
The actual state of the temperature of the box may be most accurately 
measured by the thermometer. The central aperture of the box may 
by various contrivances be adapted to various requirements in respect 
to moisture and pressure. The advantages of such an apparatus for 
the examination of such parts as the mesentery in the living body, 
are obvious. — Ibid. 
On Measurements of Heat in the Microscope, by Dr. Engelmann, 
Utrecht. — Investigating into the influence of higher temperatures on 
ciliary movements, Engelmann was obliged to use Schultze's heated 
