Six hundred guests answered to the invitation of the Society
of Arts on Saturday evening at the convoraazione in the Adelphi. The stereoscopic views of the " moon" and the " waves," taken by Mr. Fry, by means of a telescope belonging to Mr. Howell, at the Hove Observatory, near Brighton, were much observed. The selection of objects shown under the microscope, which were exhibited by Messrs. Ladd, Murray, and Heath, was most curious and interesting. Other objects which attracted notice were Mr. Rae's patent self-cleansing water-cistern and filter ; and the patent Roman type-printing telegraph, invented by Professor Hughes. The marine pressure gauge, invented by Mr. H. Johnson, an instrument intended to show the pressure of water at various depths by the com- pression of an isolated column of air ; and the compensation self register- ing maximum thermometer, arranged for deep-sea observations, invented by Mr. Scott, excited attention.
As the celebrated collection of the Mused Campana has passed into the hands of the Pontifical Government, after having for a long period excited intense interest in the highest Art circles throughout Europe, we are making arrangements with the permission of the accredited agent in
this country to give to our readers a series of notices of the most remark- able items in the collection.
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