ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 1081 



Nelson, E. M. — Microscopical Binoculars. 



[Supra, pp. 1073-5. Keply to query by E. P. G., p. 171.] 



£ii;jL Meek., XLII. (1885) pp. 202-3 (6 figs.). 

 „ ., Diaphragms. 



[DiapLiagms close to the object or in contact with the lower side of the slip 

 have no effect.] 



Ihid., XLII. (1885) p. 239. 

 „ ., Pygidium of the Flea as a test-object. [I'ost.'} 



Journ. Quel:. Micr. Club, II. (1885) p. 197. 

 „ „ Position of Objects with the Binocular. \_Sup7-a, p. 1074.] 



Ibid., pp. 198-200. 

 Old FIELD, W. — The Construction of Object-glasses. 



[Criticism of Orderic Vital's comments ou his articles.) 



Engl. Mech., XLII. (1885) p. 205. 

 Pelletan, J. — Les Objectifs a immersion homcjene de MM. Bezu, Hausser et 

 Cie. (The homogeneous immersion ol>jectives of MM. Be'zu, Hausser & Co.) 

 [Commendation of their Microscopes and objectives. ] 



Jvurn. de Microgr., IX. (1885) pp. 313-6 (1 fig,), 

 "Pkocell a." — Microscopical. 



[1. Correcting some errors in F. Grant's communication, ante, p. 889. 

 2. Strongly recommending B Kellner eye-pieces.] 



Engl. Mech., XLII. (1885) p. 100. 

 Queen, J. W. — Table of Colour-corrections. [Supm, p. 1068.] 



Queen'i Micr. Bulletin, II. (1885) p. 38. 



Regnard, p. — Sur un dispositif permettant de suivre par la vue les pheno- 



menes que presentent des animaux soumis a une pression de 600 atm. (On 



an apparatus allowing the phenomena to be followed which are presented by 



animals subjected to a pressure of 600 atmospheres. [Ante, p. 876.] 



Comptes Eendus, C (1885) pp. 1243-4 (1 fig.). 



Nature, XXXII. (1885) pp. 399-400 (2 figs.), from La Nature. 



Journ. Soo. Scieatifiques, I. (1885) pp. 358-9. (^Soc. de Biol., 25th July.) 



Kobin (C.) Death of. Nature, XXXII. (1885) p. 578. 



EoYSTON-PiGOTT, G. [W.] — Microscopical Advances—Ancieut and Modem. I. 



Engl. Mech., XLII. (1885) pp. 231-2. 

 Smith, H. L. — The influence of Science Studies. 



[Presidential Address to the Cleveland Aleeting of tiie American Society of 



Microscopists. 

 "Happily we, in the study of niieroscopy, are untrammelled by meta- 

 physical thoughts. We microscopists do not trouble ourselves with 

 cause and effect, but Iciive the leaven in the lump, feeling assured that 

 it will in time leaven the whole. The old word lias passed away. The 

 age of the hero has passed away. The people have arrived. Science has 

 arrived, and theology, law, and all are on trial. Tliose who devote their 

 lives to scientific rest arch dcvelope a love for truth." 

 " Professor Smith said that he could remember when physicians were shy 

 of the Microscope. To-day, wliile there are a few old practitioners who 

 slirug tlieir shoulders distrustfully wlien the younger physicians use the 

 Microscope, even the ohler ones are unconsciously affected in their jiruc- 

 tice by advancement in microscopical investigations. The President spoke 

 of biology, which owed its existence to microscopy, and which has worked 

 a revolution in medicine. Anything that can claim to aid us in coping 

 with contiigious disea.-e.s, with blights upon our crops and diseases in our 

 flofiks, is of intense interest to the public, and it Ls with these that biology 

 deals. It is in its infancy yet, but it is destined to become njoro and 

 more impfjrlant. The speaker said that it had been shown that a two- 

 Lundred millionth part of a droi) contains enough b.acteria to bo deadly 

 infectious. He said that when it is shown that ventilation and sewage 

 Lave been greatly b(-nefitcd by microscopic inventigations, it may be 

 ofjnaidered fortunate that some men have microbes on tlio brain, as haa 

 been said in jest. IIo said tliat biology may yet prove that the in- 

 finitciiimal organiams with which it deals are not alone concerned with 



