1826.] Scientific Notices-^Miscellaneous, SIS 



; Similar ideas are expressed in the same work, vol. xi. p. 70. 



I mention these appearances on bowlders of sandstone in this 

 vicinity, in order that in other places, if similar appearances 

 exist, they may be noticed. Such observations may lead to 

 probable conclusions respecting the transportation of bowlders, 

 and the formation of banks of earth. — (American Journal of 

 Science.) 



5. New Species of Salamander, (inhabiting Pennsylvania.) By 

 Richard Harlan, M.D. Prof, of Comp. Anat. to the Phil. 



: Mus. 



S. ftavissimOf, 



:i ; Char, Brownish, yellow above ; clear bright yellow beneath ; 

 beak marked with three black lines; tail compressed, longer 

 than the body. 



Dimensions, Total length three inches two tenths ; length of 

 tlie tail one inch nine tenths ; of the body, head inclusive, one 

 inch three tenths. 



Description, A long and slender animal, head broader than 

 the body, rather depressed ; eyes prominent, iris gilt yellow ; a 

 broad black line on each side of the spine extending from the 

 eye to the end of the tail ; a narrow depressed black line ex- 

 tending along the spine from the occiput to the base of the 

 tail ; all the under parts of the animal of a deep yellow ; head 

 separated from the neck by a transverse line under the throat ; 

 tail compressed, much longer than the body and head. 



Note. I have caught several of these animals beneath the 

 stones in moist places, or on the borders of brooks in shady 

 situations ; it is a very active species and sometimes attains to 

 three inches in total length ; the black line in the dorsal furrow 

 is sometimes wanting, in which case the back is mottled with 

 black — placed in spirits the yellow colour is destroyed. This 

 species will occupy an intermediate station between the S. bis- 

 lineata and S, rubriventris, A specimen is in the cabinet of the 

 Acad, of Nat. Sc. of Phil. — (American Journal of Science.) 



6. 0?i the Semi-decussation of the Optic Nerves, 

 By Dr. Crawford. 



Mrs. B. at 65, had a slight hemiplegic attack of the left side, 

 9th Dec. 1816. She regained in great measure the use of her 

 limbs ; but the following affection of the sight continued from 

 the time of her seizure till her death, about five years after- 

 wards. 



When she looked at any object, she could only see one-half 

 of it distinctly, the other being very obscure. For example, in 

 looking at a person's face, she could only see distinctly that side 

 of it which was to her right hand. This was equally the case 

 whether she looked with both eyes, or only with the right one y 



