ON SOME PROTEIN CRYSTALLOIDS. 121 



Fig. 1. — From young ovary, 3 millenietres in length. Hair cell, a, at 

 the stage when it is first distinguishable from other epi- 

 dermal cells. 



,, 2 — 3. — Hairs from ovary, 5 millenietres long. No erythrophilous 

 bodies outside the nucleus. Fig. 2 shows 4 nucleoli in 

 the nucleus. Fig. 3 exhibits characteristic dumb-bell 

 shaped nucleus, containing 3 nucleoli. 



,, 4—5. — From an ovary 7 millenietres in length. Fig. 4 is a very 

 typical hair-cell of this stage, with numerous small ery- 

 throphilous granules in the cytoplasm, crk. Fig. 5 shows 

 slender crystalloids, cr., as well as granules, cr-k. 



,, 6— 10.— Mature hair-cells from the ovary of an opening flower. 

 Fig. 6, the nucleus has a peculiar, almost pear-shaped 

 outline ; 9 small crystalloids are seen in the cytoplasm. 

 Fig. 7 shows a group of large and small elongated crys- 

 talloids. Fig. 8 shows a nucleus with 1 large and 2 small 

 nucleoli, one of which is close to the periphery of the 

 nucleus. There is a conglomerate mass of crystalloids in 

 the cytoplasm, and also a few small scattered rods and 

 granules. Fig. 9, Hair-cell with one conglomerate group 

 of large crystalloids, and exhibiting marked vacuolation 

 of the cytoplasm, v. Fig. 10 shows a large vacuole, v., 

 siuTounded by crystalloids. 



,, 11 — 13. — From an ovary in which fertilisation had taken place, 

 and the ova of which in most of the ovules had under- 

 gone their first division. Fig. 11. — Large hair-cell, in 

 which the protoplasm and nucleus have commenced to 

 degenerate ; crystalloids are still present. Fig. 12. —Very 

 long hair, with degenerated protoplasm. There is a very 

 large vacuole in the cytoplasm, v., and the nucleus is also 

 vacuolated, n.v., while the nucleolus has a large single, 

 centrally placed endonucleolus, e. Two crystalloids lie 

 in the cytoplasm. Fig. 13 shows a partially degenerated 

 and much vacuolated hair-cell, a ; a completely withered 

 hair, b ; and a group of crystalloids, c ; which have been 

 discharged by a withered cell, the latter being repre- 

 sented only by vestiges of cytoplasm, pr., and nucleus, n. 



,, 14. — Cell from dorsal epidermis of carpellary leaf, containing 

 small rhomboidal crystalloids. 



