4 
very sparing in the detail of those attested appearances of marine 
monsters which are already pretty well known to the scientific 
world: on the other hand he has been anxious to provoke the 
attention of the naturalist and comparative anatomist to those more 
recondite and overlooked circumstances which, philosophically con¬ 
sidered, are of importance towards the arrival at the truth of these 
questionable existences. 
The authorities for most of the facts and opinions given, are 
generally named at the time. 
Hoping that his labours (with the valuable aid of Punch) will 
tend to keep the subject alive, until some fortunate event may give 
a satisfactory solution to the whole question, the Author respectfully 
dedicates this brochure to those readers who take a grave interest in 
the desiderata of Natural History and Science. 
The Plates are taken from drawings hastily got up for the purpose 
of illustrating the subject, in respect of size and general outline alone, 
without pretension to great exactness in the details of the animals 
represented; though, as far as they go, it is hoped they are generally 
correct. 
