The fifth and sixth lectures of Professor Coughtrey's course were devoted chiefly to the blood, and were abundantly illus trated by microscopical preparations. The composition of the blood was, on the whole, a good approximate index of the composition of the body. There were albuminous matters, fats, saline salts, acids, earths, iron, and there was water. This nutritive fluid was remarkable for the ease with which it gave up some of the materials on the one hand, and for its voraciousness or power of absorbing on the other. It illustrated very well the facility with which changes are brought about in the animal economy, and a marked feature of organic elements— their instability. The circumstances attending

The inspection and discussion of the results obtaiend by the various observers of the recent transit of Venus, so far as they have gone, give a solar parallax of 8 "38 seconds. The discussion is likely to last until it shall be time to make prepa rations for the next transit in 1882. By that time the observers will know exactly what to look for, and there will be such a combined attack on the problems to be solved, that little will be left for future investigators. Some surprise ha 3 been

Nothing will give more satisfactory proof of the progress we are making in the industrial arts and in material wealth than an occasional account of the exten sive manufacturing, works which from time to time are established in our midst, including the mechanical arrangements and modes of manufacture. Ie will be seen, from reports which have already appeared in our columns, that we are always advancing beyond the point from whence we started, and that we have an indefinitely-extendedregionyettoexplore. It is not very long since Messrs Findlay and Co., of Cumberland street, com menced, first with a timber yard, and then with a saw-mill. They have kept adding to their establishment, until now they have an extensive manufactory, employing many of those wonderful labour-saving machines of recent inven tion for working in wood, and about one hundred skilled artizans. As we have already noticed this establishment, we intend at present to refe#> chiefly to the new branches which have of late been introduced.
