404. That’s an error.
The requested URL /translate_c?act=url&depth=1&hl=fr&ie=UTF8&prev=_t&rurl=translate.google.com&sl=fr&tl=en&u=http://books.google.com/books%3Fid%3DssL4b2UBNlwC%26pg%3DPA237%26dq%3Dglial%2Bten%2Bneurones%26hl%3Dfr%26ei%3DPSntTOGfIo20hAejqI3NDA%26sa%3DX%26oi%3Dbook_result%26ct%3Dresult%26resnum%3D9%26ved%3D0CFYQ6AEwCA&usg=ALkJrhhlxpN8L8rPnHHeP5vk5qD3NHFwSg
was not found on this server. That’s all we know.