310 CHAPTER XXIII. 



stand for twelve hours., decanted, the deposit washed with 

 distilled water oil a filter until the washings come through 

 dark blue (one to two days), and the blue dissolved in about 

 a litre of water. 



509. EMEKY'S Aqueous Carmine (ibid., 1881, p. 21). To a 10 per 

 cent, airiffloniacal solution of carmine is added acetic acid, with continual 

 stirring, imtil the colour of the solution changes to blood-red through 

 incipient precipitation of the carmine. The supernatant clear solution is 

 poured off, and injected cold without further preparation. The injected 

 organs are thrown at once into strong alcohol to fix the carmine. For 

 injection of fishes. 



510. TAGUCHI'S Indian Ink (Arch. f. mlk. Aunt., 1888, p. 

 565; Zeit. f. wins. Mik., 1888, p. 503). Chinese or (better) 

 Japanese ink well rubbed up on a hone until a fluid is ob- 

 tained that does not run when dropped on thin blotting-paper, 

 nor form a grey ring round the drop. Inject until the 

 preparation appears quite black, and throw it into some 

 hardening liquid (not pure water). 



I believe this will be found useful for work amongst 

 Invertebrates, as well as for lymphatics, juice canals, and the 

 like. 



CeUoidin Masses. 



511. SCHIEFFERDECKER'S Celloidin Masses (Arch. Anat. v. Phys., 

 1882 [Anat. Abth.~], p. 201). (For Corrosion preparations ) See previous 

 editions of this work, or WHITMAN'S Methods in Microscopical Auatmity. 



512. HOCHSTETTER'S Modification of SCHIEFFERDECKER'S Mass (Anat. 

 Am., 1886, p. 51 ; Journ. Roy. Mic. Sue., 1888, p. 159). 



Of Tier 



513. BUDGE'S Asphaltum Mass. See Arch.f. mil: Aunt., xiv. 1*77. 

 p. 70, or previous editions. 



514. HOYER'S Shellac Mass (Arch.f. iil: Anat.. 187<>, p. (Mo). For 

 this and that of BELLAKMINOW (Anat. Am.. 1888. p. tio<> ; Joxni. Roy. 

 Mic. Soc., 1889, p. 150), see previous editions. 



515. HOYER'S Oil-colour Masses (Inter nat. Monatsschr.f. Anat.. 1887, 

 p. :U1 ; see also Zeit. f.wiss. Mik., 1888, p. 80, and Jo-urn. Roy. Mic. Soc., 



