could this effusion of light have been as easily procured, as the exordium wished it --I tremble to think how many thousands for it, of benighted travellers (in the learned sciences at least) must have groped and blundered on in the dark, all the nights of their lives----running their heads against posts, and knocking out their brains without ever getting to their journies end; ----some falling with their noses perpendicularly into sinks----others horizontally with their tails into kennels. 
If only this light could be so easily procured - I tremble to think how many thousands of benighted travellers (in the learned sciences at least) must have blundered on in the dark, running their heads against posts, and knocking out their brains; some falling with their noses into sinks - others with their tails into kennels. 