156 QUARTERLY CHRONICLE. 
jointed Conidium, of Macroconidium, and, perhaps, of 
most or all the thread-cells upon fluid fermenting substances. 
Under spirituous fermentation they appear as pure chains ; 
under acid fermentation as Leptothrix-felt ; under ammonia- 
alkaline fermentation as swarming cellules. 6, Thick Lepto- 
thrix-chains, arising from mucor-thecaspores upon putrescent 
substances. : 
(4) Leptothrix-yeast. Syn., Cryptococcus. In fermenting 
substances, built up from the broken chains that have fallen 
in, and generally from the “ swarms.” a, Penicillium-yeast. 
Rounded, weakly refracting, with large nucleus. 6, Mucor- 
yeast. Globular, highly refracting, fine-grained. Here, too, 
belongs the light yeast which arises in oil from Mucor. 
(5) Torula-yeast. Syn., Hormiscium. Arising through 
germination of Penicillium-spores in fermenting (alcoholic) 
liquids. . 
(6) Jointed-yeasts. Arising from the off-thrown conidia 
of the jointed-plant of Penicillium or Mucor by acid, and also 
ammonia-alkaline fermentation. The cells originate singly 
the process by which they developed from the mother-plant, 
and can place hydrocarbons in acid fermentation. 
(7) Acrospore-yeasts. Syn., Trichophyton tonsurans. 
Developing itself by chain-like growths of the Penicillium- 
spores upon oil. Within the oil the jointed chains mostly 
separate themselves quickly. (Oil-fermentation.) 
6. “ Experiments on the Solution of Berlin Blue as an 
Injection-colour,’ by Ernst Bruncke.—The ferrocyanide of 
iron forms, as is well known, in this country an excellent 
injection-colour. The receipt given by Dr. Lionel Beale is 
as useful and cheap an injection as can be desired. 
7. “On the Behaviour of the Blood-corpuscles and some 
Colouring Matters in Monochromatic Light,’ by W. Preyer. 
8. “ Researches on the Structure and Natural History of 
the Bear-beasts (Arctiscoida),” by Dr. Richard Greeff.—This 
paper, which is very lengthy and exhaustive, is devoted to 
the genus Macrobiotus, the species of which are described, 
while the details of their anatomy are also fully discussed 
and beautifully figured in two large plates. The Tardigrada 
have been sadly neglected by English observers; in Dr. 
Greeff’s bibliographical survey not a single English paper is 
quoted. We are not able here to give an abstract of the 
paper, on account of its length, but would remind those who 
wish to enter upon the subject that the latest observations on 
these animals are to be found in the pages of Prof. Schultze’s 
‘Archiv,’ where there have already appeared two other 
memoirs on species of this group of very remarkable animals. 
