{ V ) 



- , :„ CONTENTS. 



, f *-' ■ * 



I. ^ DISSERTATION on two Natural Genera hitherto con- 

 »/ Jounded under the Name of Mantis, jSj Anthony Auguflus 



Henry Lichtenftein, D.Z). F.M.L,S, Tranflated from the 

 German by Thomas Young, M.D. F,R.S, and L.S. — Page i 



II. The Botanical Hijiory of the Genus Ehrharta, By Olof Swartz, 

 M.D. EM.LS, — p. '^o 



III. Account of a Microfcopical Invejligation of fever a I Species of 

 Pollen^ 'With Remarks and ^efions on the Structure and Ufe of 

 that Part of Vegetables, By Luke Howard, Efq, of Plaifiozv in 



^ Effex p. Qr^ 



IV. Obfervations on Aphides^ chief y intended to fow that they are 

 the principal Caufe of Blights in Plant s^ and the f ok Caufe of the 

 Honey-Dew, By the late Mr, William Curtis, F.L,S, p. 75 



V. Remarks on the Genera of Feeder ot a ^ IVulfeniay and Hemi men's. 



By James Edward Smith, M.D, F,R.S, P.L,S, p. g^ 



VI. An III uf ration of the Genus Solandra, By Richard Anthony 

 Salifbury, Efq^. F,R,S. and L.S. • p. 99 



VII. Obfervations onfome remarkable Strata of Flint in a Chalk-pit 

 in the Ifle ofWight^ in a Letter from Sir Henry Charles Engkfield, ' 

 Bart, F,R,S. to John Latham, M,D. F.R.S, and L.S, p. 103 



^ Vill. Re^ 



