DR. MARTIN BARRY ON FIBRE. 121 



spirals. The last formed, or forming, of these spirals is seen at /3, together 

 with its structure, y. Represents the nuclei. Spirals were noticed be- 

 tween a and (3, but they are not represented in the figure (pars. 35, 38). 



Fig. 23. Chick in ovo ; twelfth (?) day of incubation. Sketch of a muscle-tube, 

 a. Membrane. (3. Nuclei in the centre of the tube : very near together, 

 y. Spiral. I. Another spiral appearing to arise from some of the nuclei. 

 See the description of fig. 22 |3. 



Fig. 24. Rabbit. From the cortical substance of the cerebrum. Blood-red cell 

 arranged to form tubes. These cells are in outline excepting two, iiv 

 which the contents were seen to consist of discs, or ring-like objects, 

 arranged with regularity, like those in muscle, fig. 45. 



Fig. 25. Sketch of mould on a ripe berry (Rubus fruticosus, LINN.) that had been kept 

 a few days. Cells having arranged themselves in a necklace-like form, 

 have elongated, and spirals are forming in their interior (par. 67). 



Fig. 26. Sketch of mould from cheese, a. Granules, escaped from containing bags. 

 (3, /3. Tubes, still exhibiting the septa between the cells, by the union of 

 which they were formed. One of them is branched. At y, in one of the 

 tubes, are cell-like objects arranging themselves in lines. &. Rings now 

 visible, i. Smaller rings, or interlacing spirals. . Spirals having been 

 formed, they have become very much elongated, so as to appear nearly 

 horizontal (par. 67). 



Fig. 27. Mushroom. Sketch of germinal granules, of a reddish brown or purple 

 colour, from the hymenium. In such granules a nucleus is seen, often 

 consisting of two parts. Around the nucleus are other objects, smaller 

 and having a less refractive power. These are not represented, except 

 in a. (3. Granule, apparently younger than the rest (see par. 90). 



Fig. 28. Tadpole, about 5'" or less. From the tail. Outline of cells, which are 

 altered blood-corpuscles, arranged in a line to form the first muscle-cy- 

 linder or tube (par. 42). 



Fig. 29. Tadpole, about 5^"'. From the tail. Corpuscles having the appearance of 

 young blood-corpuscles, as viewed along with many others in a group, ap- 

 parently escaped together by the rupture of one parent corpuscle. Cells 

 such as those in fig. 28 are filled with young corpuscles or discs, appa- 

 rently of the kind represented in the present figure (par. 42). 



Fig. 30. Tadpoles, 4^"' to 5'". From the tail. Fragments consisting apparently of the 

 contents of objects such as those in fig. 28 ; the discs (fig. 29) in which 

 have arranged themselves in columns. The fragments are for the most 

 part in outline, except (3. y Presented a membranous appearance at the 

 surface, not seen in a and (3. a Was of such length as to appear like 

 two of the cells in fig. 28, not separated from one another. I. Appear- 

 ance presented by one of the compound discs in the columns (par. 42). 

 MDCCCXLII. R 



