598 SUMMARY OP CURRENT RESEARCHES RELATING TO 



Petro Borello, Kegis Christianissimi consiliario et medico ordinario. Hagse Comitum, 

 MDCLV.' 1 vol. 4to. 



(42) ' Novse coelestium terrestriumque rerum observationes et fortasse hactenus 

 non vulgatse, a Francisco Fontana specillis a se inventis et ad summam perfectionem 

 perductis, editse. Neapoli, MenseFebruarii, mdcxlvi.' 1 vol. 4to. 



(43) ' Giornale del Letterati. Roma, appresso li fratelli Pagliarini,' 4to, anno 

 1749, p. 324, 325, 326, anno 1750, pp. 63-4, anno 1751, pp. 94, 95, 254. 



(44) Galileo is not named, although his Microscope is described in the two 

 following works : 



' Teorica degll Stromenti Ottici ecc. di Giovanni Santini.' Padova, 1828, 2 vols, 

 8vo, vol. ii. p. 174, § 340. 



Gehler's ( Johann Samuel Traugott) ' Physikalischea Worterbuch, neu bear- 

 beitet,' t. vi. part iii., Leipzig, 1837, 8vo. Ibid., Art. Mikroskop, pp. 2213-14. 



(45) ' Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der 

 kaiserlichen Akademie der Wissenschaften,' vi. Band, 1. Heft, 1851. (Wien, 1851, 

 8vo. Ibid., Sitting of 8th May, 1851, pp. 554-5. See also ' Annales de Ohimie et de 

 Physique,' 3 serie, t. xxxv., mai 1852, p. 127. 



The President, Dr. Hudson, F.R.S. — At the June Meeting of the 

 Society, the Fellows congratulated Dr. Hudson on his election as a 

 Fellow of the Eoyal Society — a well-deserved honour. The following 

 is a copy of Dr. Hudson's Certificate of Eecommendation : — " Charles 

 Thomas Hudson, M.A,, LL.D. (Cantab.), President of the Royal Micro- 

 scopical Society (1888). Was 15th Wrangler, 1852. Joint author of 

 Hudson and Gosse's ' Rotifera.' Discoverer of Pedalion mirum, and of 

 numerous new genera and species of Eotifera, described in papers 

 published in the ' Journal of the Eoyal Microscopical Society,' ' Quarterly 

 Journal of Microscopical Science,' and the ' Annals and Magazine of 

 Natural History,' from 1869 to the present year. Specially distinguished 

 for his knowledge of the Eotifera, concerning which he is the chief 

 living authority." ["The genus Pedalion, discovered and described by 

 Dr. Hudson, is one of the most remarkable and important contributions 

 to animal morphology of the past twenty years." — E. E. L.] 



)3. Teclinique.* 

 CI) Collecting' Objects, including' Culture Processes. 



Cultivation of Bacillus tuberculosis on Potato.j — M. D. Bamsby 

 confirms Pawlowsky's experiments on the cultivation of Bacillus tuber- 

 culosis on potato. The potatoes, sterilized at 100°, were kept in 

 an incubator at a temperature varying from 38°-40° for ten days. 

 Precautions were taken that the cultivations should be supplied with 

 sufficient moisture. The author's experiments were undertaken for the 

 purpose of seeking the bacillus in the urine of a child, suspected of 

 renal tuberculosis. Control experiments were made on Nocard and 

 Eoux's glycerin-gelose. Positive results were obtained from both media. 



C2) Pyaparing' Objects. 



New Methods for Preparing Nerve-cells.| — Dr. L. von ThanhoiFer 

 recommends the following methods devised by him for demonstrating 

 nerve-cells :— 



(1) Eapid method.— A small piece of grey substance is pressed 



* This subdivision contains (1) Collecting Objects, including Culture Pro- 

 cesses; (2) Preparing Objects; (3) Cutting, including Imbedding and Microtomes; 

 (4) Staining and Injecting; (5) Mounting, including slides, preservative fluids, &c. ; 

 (6) Miscellaneous. f Annales de Micrographie, ii. (1889) pp. 362-3. 



X Mathematische und Naturwissensch. Berichte aus Ungarn, vi. (1889) pp. 57-60. 



