438 MOLLUSCS AND BRACHIOPODS. 



Fig. 25. — Ear, foreshortened, seen upon a turned-up stem, with a ter- 

 minal rosette of six sterigms and relative spores on the top, 

 stained with acidulated solution of iodine, x 1700. 



26. — Clavated stems, stained with gentian violet, x 1700. a, 

 Stem with a perfect clava, but not yet fructified, h, Stem 

 with a short clava, in formation. 



27. — Ear with two colouring zones, with clavated stem (fructified) 

 and more compact spores (teleutospores ?), stained with 

 gentian violet, x 1700. 



28. — Sheath expansion (young antheridium or spermagonium ?), 

 containing slunder transversal fine beams (future fecundating 

 elements ?), stained with strong gentian violet, x 3100. 



, , 29. — Ear doubled up at the top, stained with acidulated solution 

 of iodine, x 1700. a, Long stem, h, Point of the ear, 

 doubled up obliquely and pressed down on the middle third, 

 c, Elbow simulating a gibbosity. 



30. — Ear, apparently pyriform, through superposition of adventi- 

 tious cocci and bacteria, stained with gentian violet, x 1170. 

 a. Cap, at first stage of colourising, pale, formed by adven- 

 titious cocci and bacteria (through contact of lips ?) up to 

 the middle, d, d, of the internal ear. 6, b, Internal ear, 

 brilliantly coloured, c, Stem. 



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flDonu0C6 anb Bracbiopoba. 



* 



IT is with much pleasure that we are, through the kind courtesy 

 of Messrs. Macmillan and Co., enabled to direct the atten- 

 tion of our readers to the first published volume of The 

 Cambridge Natural History. 



The series, which is edited, and for the most part written, by 

 Cambridge men, is to consist of ten volumes, each of which will 

 contain about 500 pages and will be complete in itself The 

 volumes have been numbered on a definite plan, but will be pub- 

 lished in the order in which they are ready for the press. The 

 one before us is Vol. III. of the series. 



T/ie Cambridge Natural History is intended, in the first 



* Molluscs. By the Rev. A. H. Cooke, M.A., Fellow and Tutor of 



King's College, Cambridge. Brachiopods (Recent). By A. E, Shirley, 



M.A., Fellow of Christ's College, Cambridge. Brachiopods (Fossil). 



By F. R. C. Reed, M. A., Trinity College, Cambrid4e. Royal 8vo, pp. xiii. — 

 535. (London: Macmillan and Co. 1895.) Price 17/- net. 



