SJioriljj will he PuUished, 



MALACOSTRACA BRITANNICA PODOPTHALMArA, 



or a monograph on the British Crustacea with pedunculated 

 eyes. 



Dr. Leach ha-ving a desire to elucidate the British Crustaceae 

 (Crabs, Lobsters, &c.) seeing the necessity of a more perfect 

 knowledge of this interesting tribe, since some which are articles of 

 food in the country, are not known in London, &c. Pvlr. Sowerby 

 is glad to assist in his pari so laudable an undertaking, not doubt- 

 ing but that ia such able hands it will be highly useful and in- 

 structive. 



The first number of this work is expected to ma'ke its appear- 

 ance on the 1st of December ; it will contain three cok'ured plates 

 in 4to. with accompanying descriptions, at 5*. and may be consi- 

 dered as a specimen of the w^ork. The whole will be completed 

 in about 17 Numbers, of which we intend publishing one every 

 three months, or oftener if possible. 



No. 3, 4, and 6, of the Supplement to ENGLISH FUNGL 

 The first of these will be published Nov. Ist, 1814. 



^^ 



