Analysis of Periodical Works on Zoology and Botany. 231 



The Elements of Anglo-Saxon Grammar, with copious notes, 

 illustrating the structure of the Saxon, and the formation of 

 the Enghsh Language ; and a Grammatical Praxis, with a 

 literal English version. With remarks on the history and use 

 of the Saxon tongue ; and an Introduction on the origin and 

 progress of alphabetic writings, &c. By the Rev. J. Bosworthj 

 M.A.F.A.S. 



A new Edition of Donn's Hortus Cantabi-igieiisis, with nu- 

 merous additions and corrections. By J. Lindley, F.L.S. &c. 



ANALYSIS OF PERIODICAL WORKS ON ZOOLOGy AND BOTANY. 



Sonsoerby's Genera of Shells. No. 12. 



TuRRiTELLA Lamarck: a genus including such Turbines of the Linna?an 

 school as have a very long attenuated spire, and an entire oval mouth. 

 Chitok. It is almost inconceivable how Linnoeus could have associated this 

 genus with the Multivalves, placing it the first in his sjstem, and Patella 

 nearly the last. This wide sejjaration of two genera, so closely allied to 

 each other, can only be accounted for by the obligation he felt of adhering 

 to the rules of his artificial system. Plaxaxis: a new genus (and we think 

 very unnecessary one) recently made from Hiiccinum. Ciiania: a group of 

 strangely formed Bivalves, allied to Anuiida of Linnaeus, and remai-kable for 

 the similarity which their interior valves bear to a human skull. Balanus: 

 to which genus Mr. S. has also attached that of Acasta (Leach). Neri- 

 iina: it is our opinion that the only ground for separating the marine 

 from the iluviatile Nerits, must rest on the difference of their respective 

 animals. Mr. Sowerby remarks that the river shells have no teeth, yet he 

 figures one with remarkably large, and another with small crenated teeth ; 

 moreover, the teeth in his Navicella altavillensis (which he now refers to 

 this genus) are still more prominent. On the whole, therefore, we think 

 this genus is objectionable. It can never be understood by the generality 

 of conchologists, who have not the opportunity of studjdng the animals of 

 these two genera, and ascertaining theu" respective distinctions. 



Hooker's Exotic Flora. 



The Second Part of Dr. Hooker's Exotic Flora was published on the 1st 

 of December, and contains several highly interesting subjects. 



Tlie first plate (the 18th of the work) represents the truly beautiful 

 Begonia argyrusliginu, a plant of recent introduction to our gardens, and re- 

 markable for the fine red colour of the underside of its leaves, wliilst their 

 upper surface, wliich is of a deep green, is studded with silver-like spots. 

 '1 ab. 11) is the Oronthnii aquatieum, a well known plant, but of which no sa- 

 tisfactory figure existed. Tab. x'O. Cactus tritncalus, which appears to 

 have flowered for the first time in this country in the Royal Botanic Garden 

 of Glasgow ; and is singular in the form of its stems, as well as beautiful in 

 the size and colour of its flowers. Tab. 21. Feperomia blanda: Tab. 22. 

 Peperomia quadrifulia: Tab. 23. Feperomia j^oll/stachia : — three singular 

 plants of the natural order Piperacece, which many authors unite with the 

 true Pipers; but not with sufficient reason, as a[)pears by the interesting 

 remark, under Pcj). hlatida, quoted from Humboldt and Knnth Nov. Gen. 

 Tab. 24. Velleia lyrala of Brown's Prodromus (the Veil, spathidata of Juss. 

 in Ann. du Mus.). Tab. 2.i. A second species of Doodia, D. caudata {D. 

 o«;)errt having l)een figured in Part I.), a rare N. Holland Fern. Tab. 2(5. 

 Tlie handsome i)ut well known Caladiiim biculor, which appears to be in- 

 troduced 



