ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 975 



KiXGSLET, J. S. — Workers and their Instruments. 



[List of 31 United States and Canadian working microscopists with the 

 Microscopes they use, being German 24, American 11, and English 2. 

 " It may be that these men who have chosen the despised instruments of 

 Europe are fools, and that they are not capable ol appreciating a good 

 article when they see it ; but if we are to judj^e by their published works, 

 we have no evidence of any dementia or idiocy." 



Scknce Record, II. (1884) pp. 261-2. 

 „ „ [Suspension of publication of the ' Science Record.'] 



Science Record, II. (1884) pp. 272-5. 

 ' Lens,' proposed resuscitation of, by Illinois State Microscopical Society. 



Science Record, II. (1884) p. 207. 



Martius. — Eine Methode zur absoluten Frequenzbestimmung der Flimmerbe- 



wegung auf stroboskopischem Wege. (A method for determining the absolute 



frequency of the movement of the cilia by means of the stroboscope.) \_Post.'\ 



Arch. f. Anat. u. Physiol., 1884, Physiol. Abtheil., pp. 456-60. 



Miller, M. N. — Photographing Diatoms and diffraction gratings. 



[Reply to query as to " how to successfully photograph a diatom its 

 natural size, preserving if possible the detailed structure in the photo." 

 Suggests first making a photomicrographic negative x 200-500, and then 

 making a microphotographic positive from the negative, which with a 

 lens would show the detail of the larger picture.] 



Engl. 3fech., XL. (1884) p. 158. 

 Nelson, E. M. — Illumination for tlie Microscope. II., III. [Post.l 



Enjl. Mech., XL. (1884) pp. 157-8 (3 figs.), 263 (6 figs.), (in part). 

 „ „ On a Hydrostatic Fine Adjustment. \^Ante, p. 800.] 



Journ. Qnek. Micr. Club, II. (1884) pp. 57-8 (3 figs.), 84-5. 

 „ „ The Diatomescope. [_Supra, p. 962.] 



Engl. Mech., XL. (1884) pp. 157 and 242. . 



»> •» !> » 



[Rejoinder to F. R. M. S. Also remarks on oblique illuminators, which he 

 thinks should " be consigned to the dust-bin."] 



Emjl. Mech., XL. (1884) p. 242. 

 OsBOBNE, S. G. — The Diatomescope. \_Sicpra, p. 961.] 



Engl. Mech., XL. (1884) pp. 180-1. 

 j» j> )? ti 



[Comment on " F. R. M. S.'s " letter, and that there is no difficulty in 

 fitting the apparatus to a substage.] 



Engl. Mech., XL. (1884) p. 221. 

 QcEEN, J. W. — Some recent devices for quickly changing objectives. 

 [All have appeared ante, except Fasoldt, s'ipra, p. 959.] 



Micr. Bulletin, I. (1884) pp. 34-6 (6 figs.), 42-3 (5 figs.). 

 Queen's (J. W. & Co.) New Dissecting Stand. \_Post.'] 



Micr. Bulletin, I. (1884) p. 38 (1 fig.). 

 „ „ New Class Microscope. 



[Described II. (1882) p. 398.] 



Micr. Bulletin, I. (1884) p. 47 (1 fig.). 

 [Redding, T. B.].— The Microscope. II. 



Indianopolis Journ., 12th October, 1884, p. 7. 

 EoYSTON-PiGOTT, G. W. — Diatomcscope experiments. 



[Examples showing the capabilities of the instrument, witii drawings of the 

 apjtearance of P. angulatuin.'] 



Eiujl. Mech., XL. (1884) p. 239 (2 figs.). 



SiEDASiGROTZKT, O., and V. HoPMELSTER. — Anleltung zur mflfroskoplschen uud 



chemischen Diaguoslik der Kraukiieitcn der Ilaustliitre fiir 'J'hicrarzte uiid 



Landwirthe. (Guide to the microscopical and chemical diagnosis of the 



diflf^ases of domestic animals, for veterinary surgeons and farmers.) 2nd ed. 



[Contains geiK-ral remarks on the use of the Jlicroscope, pp. 4-16, and 



the principal impurities of microscopical preparations.] 



iv. and 227 i)p. (5(j ligs.), «vo, Dresden, 1884. 



