. Appendix to the Manual of Mollusca of Woodward, : containing such recent and fossil shells as are not mentioned in the second edition of that work . ; By JAMES DANA, f: k %? ji Illustrated. Price 2s. y I RUDIMENTARY 0£ g I ELECTRICITY:^ / b £ ^ Being a concise Exposition of the General Principles of fe j- Electrical Science, and the Purposes to which j* t it has heen applied. gr | By SIR W. SNOW HARRIS, , &e. £ Illustrated. Price Is. 6d. ??* J A RUDIMENTARY TREATISE ON *f I GALVANISM, fl I AND THE GENERAL PRINCIPLES OF ANIMAL AND S? L VOLTAIC ELECTRICITY; ^ ? With Brie
. Appendix to the Manual of Mollusca of Woodward, : containing such recent and fossil shells as are not mentioned in the second edition of that work . ; By JAMES DANA, f: k %? ji Illustrated. Price 2s. y I RUDIMENTARY 0£ g I ELECTRICITY:^ / b £ ^ Being a concise Exposition of the General Principles of fe j- Electrical Science, and the Purposes to which j* t it has heen applied. gr | By SIR W. SNOW HARRIS, , &e. £ Illustrated. Price Is. 6d. ??* J A RUDIMENTARY TREATISE ON *f I GALVANISM, fl I AND THE GENERAL PRINCIPLES OF ANIMAL AND S? L VOLTAIC ELECTRICITY; ^ ? With Brief Notices of the Purposes to which it has been applied. 5 J ? By SIR W. SNOW HARRIS. |? Illustrated. Price 1*. Gd. a j! VIRTUE BROTHERS & CO., 26, Ivy Lane, Paternoster Row. f> 2?* x */L> r^l APPENDIX ^ /in TU THE MANUAL OF MOLLUSCS OF S. P. WOODWARD, , SUCH EECENT AKD FOSSIL SHELLS AS ARE NOT MENTIONED IN THE SECOND EDITIONOF THAT WORK. I H^L, O \ Division By RALPH TATE, , APR 29 1988 LONDON: —^ VIRTUE & CO., 26, IVY LANE. NEW YORK: VIRTUE & YORSTON. 18G8. m&Mm&mfcmEMZ^K^^iZMMME:,. M^I^SX^I^rWWEMWZWKFS-- CLASS I.—CEPHALOPODA. OkDEB, I.—DlBRANCHIATA. Family III.—, Meek and Hayden. Type, P. subovatus. Cretaceous. Nebraska. Pen corneous, thin, subovate, slightly concave below, andconvex above. From behind the mid-dle it narrows towards the front, theoutline of the lateral margins beingconvex, while the posteriorend is moreor less obtusely angular. Apparentlyrelated to Beloteuthis and Teudopsis.(See p. 168.) Family IV.—Belemnitlile.* The Shell of Belemnites consistsfundamentally of:— 1. A hollow cone, the phragmocone,Fig. 1, p, with a thin shelly wall,termed the conotheca, c, and which isdivided by transverse septa, concaveabove and convex below, into cham-bers or loculi; the septa are perforatednear the ventral margin by a siphuncle. 2. A guard or rostrum, g, more orless extensively enveloping the apicalpar
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Keywords: ., bookcentury1800, bookdeca, booksubjectmollusks, booksubjectshells
