22 ■ MU. E. A. NEWELL ARBEE ON THE [Feb. I903. 



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Engl. Inst, Min. & Mech. Eng. vol. xxviii, p. 109. 1879. 

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Engl. Inst. Min. & Mech. Eng. vol. xxxii, p. 319. 1883. 

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Soc. vol. li, p. 235. 1895. 

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Eng. vol. x, p. 202. 1896. 

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Nat. Union. 1890-95. 

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Trans. Manch. Geol. Soc. vol. xxi, p. 401 & vol. xxii, p. 632. 1892 & 1895. 

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1894. 

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EXPLANATION OF PLATES I & II. 



All the specimens are in the Woodwarclian Museum, Cambridge. 



[The figures are reproduced from photographs taken by Mr. Tarns, Cambridge. 



They are all approximately of the natural size, except PI. II, fig. 2.] 



Plate I. 



Fossil Plants from the Sandstone Series. 



Figs. 1 & 2 from specimens in the John Woodward collection, formed before 



1729 a.d. ; figs. 3-5 from specimens collected by Adam Sedgwick. 



Fig. 1. Neuropteris ScheucJizeri, Hoffm. 



2. Neuropteris obliqua (Brongt.). 



3. Catamites (Calamitina) approximatus, Brongt. 



4. Lepidodendron aculeatum, Sternb. 



5. Sigillaria scutellata, Brongt.' 



Plate II. 

 Fossil Plants from the Productive Measures. 



Specimens collected by the Author. 

 (These photographs need to be examined with a hand-lens.) 



Pig. 1. Zeilleria delicatula (Sternb.). 

 2. Do. do. x4. 

 o f a. Sphenopteris furcata, Brongt. 

 L b- Sphenopteris obtusiloba, Brongt. 



4. Mariopteris sp. 



5. Lepidodendron lycopodioides, Sternb. 



6. Lepidodendron Wortheni, Lesq. 



