Bibliographical Notices. 351 



5th. A scapiila, apparently of the Palceotherium, in fine preser- 

 vation; also a portion of the upper jaw with several molar teeth 

 in situ. 



6th. A great portion of the head of an alligator, having nearly- 

 all the upper range of teeth (42 in number) remaining, along mth 

 the humerus, dermal scutfe and other parts of the skeleton. 



This fossil, I think, may be regarded as the most interesting 

 Saurian relic yet discovered in British or continental tertiary 

 strata. The remains were imbedded in the fine siliceous sand of 

 which the freshwater deposit at Hordwell is chiefly composed, 

 and with the exception of a change in colour and chemical com- 

 position, are presented to the study of the palaeontologist in a 

 state which would challenge comparison with those of any recent 

 skeleton. Mr. Wood's discovery too constitutes I believe the first 

 authentic record of the occm-rence of the alligator in the fossil 

 state. In the same deposit this gentleman found numerous scales 

 and vertebrse of the Lepiclosteus, a genus of fishes now associated 

 with the alUgator in the new woi-ld. ]\Ir. Wood proposes to call 

 the Hordwell alhgator A. Ha7itoniensis.* 



BIBLIOGRAPHICAL NOTICES. 



Naturgetreue AbbUdnngen und Beschreibungen der essbaren, schcidlichen 

 und verdclchtigen Schtvcimme. Von J. V. Krombholz. Prag, 1831- 

 1843. 

 Eight parts of this splendid work, containing sixty-two plates, were 

 published, when it was arrested by the death of the author in the 

 course of last autumn. Fourteen more plates however had been en- 

 graved before the ' Epicrisis ' of Fries was published in which they 

 are quoted, and which appeared in 1836, but was some time pre- 

 \iously in the hand of the printer. These we have obtained from 

 Prag through the kindness of M. Corda ; and we believe that the 

 drawings from which they were made are lost together with the 

 greater part of the specimens ; there is therefore no probabilit}^ of 

 their ever being published. The work then must be considered as 

 ending with the sixty-second plate, and we confidently recommend 

 it as a storehouse of excellent figures which are due to the pencil of 

 M. Corda, who is no less happy in the delineation of larger objects 

 than in the minute forms of fungi, on which he has thrown so much 

 light ; indeed the whole execution of the work is due to him, 

 Krombholz himself having done little more than the editorial part. 

 The figures and dissections, it must be remembered, were made some 

 time before the recent discoveries of the true structure of the hyme- 

 nium, and at a time when M. Corda was neither so practised in the 

 use of the microscope nor possessed of so good an instrument as at 

 present; the analyses therefore are not what one would expect from 



* It is Mr. Wood's intention shortly to publish a more dctuiled account 

 of these fossils, accompanied by illustrations. 



