406 FOSSIL SCORPIONS. 
The existence of Spiders in the Jurassic por- 
tion of the Secondary formations has been estab- 
lished, by Count Munster's discovery of two spe- 
cies in the lithographic limestone of Solenhofen. 
M. Marcel de Serres and Mr. Murchison have 
discovered fossil Spiders in Freshwater Tertiary 
strata near Aix in Provence. (See PL 46", Fig. 
12.) 
Fossil Scorpions. 
The address of my friend Count Sternberg to 
the members of the National Museum of Bohemia 
(Prague, 1835), contains an account of his disco- 
very of a fossil Scorpion in the ancient Coal 
formation at the village of Chomle, near Radnitz, 
on the S. W. of Prague. This most instructive 
fossil (the first of its kind yet noticed) was found 
tail were covered by Iron stone, and its appearance much re- 
sembled an animal of this kind. Mr. Prestwich announces also 
the discovery, in the same formation, of a Coleopterous Insect, 
which will be further described in our next section, as referrible 
also to the Curculionidee. 
It is scarcely possible to ascertain the precise nature of the 
animals, rudely figured as Spiders and Insects on Coal slate by 
Lhwyd, (Ichnograph. Tab. 4,) and copied by Parkinson, (Org. 
Rem. V. iii. PI. 17, Figs. 3, 4, 5, 6) ; but his opinion of them 
is rendered highly probable by the recent discoveries in Coal- 
brook Dale: " Scripsi olim suspicari me Araneorum quorundam 
icones, una cum Lithophytis in Schisto Carbonaria observasse : 
hoc jam ulteriore experientia edoctus apert^ assero. Alias icones 
habeo, quse ad Scarabseorum genus quam proxime accedunt. In 
posterum ergo non tantum Lithophyta, sed et queedam Insecta in 
hoc lapide investigare conabimur." Lhwyd Epist. iii. ad fin. 
