CONTENTS. vii 
PART IV.—1859. 
XXI. Observations on the Structure of the Stem in certain Species of the Natural Orders 
Caryophylleæ and Plumbagineæ. By DANIEL OLIVER, Jun., F.L.S. . page 289 
XXII. On the Genus Henriquezia of Spruce. By GEORGE BENTHAM, Esq., V.P.L.S. 295 
XXIII. Remarks on Gnetum. By the late WILLIAM GRIFFITH, Esq., F.L.S., Madras 
Medical Service. Communicated by A. HExrREY, Esq., F.R.S., F.L.S., Professor 
Ofolfolany; King's College. 4a) SS a ØP SØR ID 
XXIV. Synopsis of the Fructification of the Simple Sphæriæ of the Hookerian Her- 
barium. By FREDERICK CURREY, Esq. M.A., PBS. FOS. . . . . . 313 
XXV. Synopsis of the Genera Camellia and Thea. By BERTHOLD SEEMANN, Esq., 
PED, BELS . . 249 2124 0  . . ee 
XXVI. On Tomopteris onisciformis, Eschscholtz. By WıLLıam B. CARPENTER, Esq., 
UBD SERE ERES. . |. 4 9 o 5» s ws. JM 
XXVII. On some new forms of Entozoa. By T. SPENCER Cossoi, Esq., M.D., 
XXVIII. On the Anatomical Characters of three Australian species of Tunicata referable 
to Savigny’s subgenus Cæsira. By Joux DENIS MACDONALD, Esq., F.R.S., Assistant 
Surgeon of H.M.S. * Herald, commanded by Captain H. M. DENHAM, R.N., 
FRS. Communicated by Guorce Busk, Esq., F.R.S., F.L.S. . . . . . 367 
XXIX. On the Anatomical Characters of a remarkable form of Compound Tunicata. 
By Joux Denis MACDONALD, Esq., F.R.S., Assistant-Surgeon of H.M.S. * Herald,’ 
commanded by Captain H. M. DENHAM, R.N., F.R.S. Communicated by GEORGE 
BUE ERN BER... . . 4 oS o so ru . . c D 
XXX. On the Anatomical Characters of an Australian species of Perophora. By Joun 
Denis MacpoNALD, Esq., F.R.S., Assistant-Surgeon of H.M.S. * Herald, com- 
manded by Captain H. M. Denmam, R.N., F.R.S. Communicated by GEORGE 
LE NE . . 971 
XXXI. Observations on the ** Bitentaculate Slug” of New Zealand (Limax bitentacu- 
latus, Quoy and Gaimard; Janella antipodarum, Gray; * Aneiteum | Slug” £ 
Macdonald). By CHARLES Knient, Seg; PDS. . . . . . . . . 881 
