ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 287 



It was by this method that Mr. Stephenson was able to keep the 

 water in his marine aquarium so pure that (in 1867) he hatched 

 the spotted dog-fish and (in 1870) herring from the egg, which had 

 not previously been accomplished. The former was hatched at the 

 expii-ation of five months and nine days, and the latter of ten days, 

 after the eggs were placed in the aquarium. 



The object of M. Kiinckel d'Herculais was apparently to devise 

 a means of aerating a marine aquarium by means of a fall of fresh 

 ivater, but the extra quantity of sea- water required to aerate an 

 aquarium in the way proposed by Mr. Stephenson is not likely to 

 present any difficulty, as it is easy to devise a plan by which a 

 constant circulation can be maintained between the reservoir and the 

 aquarium, without loss of water taking place. 



Reference may also be usefully made to an article by Mr. C. J. 

 Watson on " a simple mode of aerating small marine aquaria," * 

 in which he also describes a method of injecting air by the fall of a 

 small quantity of fresh water. 



Boyd, J. — How to Make Wax-cells. 



[F. Barnard's method, III. (1880) p. 860-1.] 



Sci.-Gossip, 1882, pp. 59-60. 

 Brittain, T. — Micro-fungi : when and where to find them. 



North. Microscopist, 11. (1882) pp. 15-16. 

 Beyan, G. H. — How to label Microscopic Slides. 



[Instead of one thin paper label at one end, use two made of slips of thick 

 card 1 in. by | to f in. — they can then be placed one against the other 

 without the glass of one slide touching the cover of the next, and hence 

 there is no need of a cabinet, as any box of a suitable size will do.] 



Sci.-Gossip, 1882, p. 64. 

 Cbumbaugh, J. W.— Our Histological and Pathological Laboratories. II. 

 [Views as to what should constitute a good working laboratory.] 



Amer. Man. Micr. Journ., III. (1882) pp. 37-9. 

 Cunningham, K. M. — Cleaning Diatoms. 



Amer. Man. Micr. Journ., III. (1882) p. 14. 

 D., A. J. — Improvements in Turntables. 



[Improvement by W. D. Smith in Kinne''s self-centering turntable — 

 explanation unintelligible.] 



North. Microscopist, II. (1882) pp. 74-5. 

 Egee, L. — Der Naturalien-Sammler. Praktische Anleitung zum Sammeln, 

 Prapariren, Conserviren organischer und unorganischer Naturkorper. (The 

 Collecting Naturalist. Practical Guide to the Collection, Preparation, and 

 Preservation of organic and inorganic Natui'al Objects.) 5th Ed. 8vo. Vienna 

 1882, pp. iii. and 221. 37 figs. 



English, J. L. — A Manual for the Preservation of the Larger Fungi (Hymeno- 



mycetes) in their natural condition, by a new and approved Metliod ; also a new 



Process for the Preservation of Wild Flowers, viii. and 41 pp. 8vo Eppino- 



1882. °' 



Hetjeck, H. van. — Immersion Fluids. 



[Transl. of paper in ' Bull. Soc. Beige Micr.' See .Appendix.] 



Amer. Man. Micr. Journ., III. (1882) pp. 26-8. 

 Hey, W. C. — Pond-collecting in Mid-winter. 



[Eeports result of fishing some ponds near York on 2nd January.] 



Sci.-Gossip, 1882, p. 31. 

 Laspeyres, H. — Ueber Stauroskope und Stauroskopische Methoden. (On 

 Stauro5Copes and Stauroscopic Methods.) 



Zeitschr.f. Instrumentenk., II. (1882) pp. 14-24 (3 figs.). 



* Midi. Natural., iii. (1880) p. 270. 



