While in Philadelphia attending the session of the Pomological Society, we received many courtesies from friends there, which call for our thanks; but to Mr. King we are especially under obligations for personal attentions, which we shall not soon forget. It was chiefly through his politeness that we were enabled to visit some very interesting places during our brief stay.

Having added Rev. Dr. Ide, Dr. Grant, and Mr. Campbell to our party, our first call was at the princely residence of James Dundas, Esq. We could only cast a hasty glance at the houses and the grounds, the latter admirably kept. It was a very gratifying sight to see such large grounds, and so many rare and costly plants, in the heart of the city. The great feature among the plants was the grand Victoria regia, leaves of which have since been exhibited at Brooklyn and New York. We found a young plant in a Basin in the open air, which seemed to be growing finely, with a flower bud nearly expanded; but the large plant in the Victoria house was a sight of itself worth a journey to Philadelphia to see. In the same tank was a specimen of the rare and remarkable Lace Plant, which grows entirely under water. The tank is arranged very much like that of Mr. Cope's at Taconey, which we eaw several years ago. Our stay at Mr. Dondas's was necessarily very brief, but we could not help being struck with the many large and fine plans in his collection, and went away regretting that there should not be room enough for all, and that they were consequently so much crowded.

From Mr. Dundas's we went to Mr. Fahnestock's, a small but tidily kept place, with a very polite gardener. We found every thing in good order. The chief attraction is the Orchid house; it is a model of its kind, well stocked with choice and rare plants, all in the beat condition. We do not remember to have seen any where so fine a collection of the exquisitely beautiful Aacec-tochilus. We left, regretting that we had only time for a glance at this fine collection of Orchids.

A ride through some of the principal streets, embracing a sight of several fine churches and public buildings, brought us to the water works, one of the most interesting objects in Philadelphia, but not strictly a horticultural subject, so we will take to our carriage again, and pass on to Girard College, another subject not strictly horticultural; but we may be permitted to say that Girard College is the grandest specimen of Grecian architecture that we have ever seen. The building is immense, but so exquisitely proportioned that we get no proper conception of its size until we stand beside one of the colossal columns that surround it. Nothing noteworthy occurred here, except that the D.D. of our party was excluded by the rules of the college, while the M.D. entered without let or hinderance. Not being disposed to find fault with so munificent a benefaction, we can only say that the rule struck us as being very singular.

Leaving the college, we proceeded to the old Bertram garden, which we bad a great desire to see. We were disappointed, however, in finding a spirit of neglect pervading the whole place; but the grand old trees, the greenhouses in ruins, and the old ivy-mantled homestead with its quaint inscriptions, were full of a peculiar interest, and very impressive. We should have liked to linger for a while amid these mementoes of the past, but the day was far spent, and with only a brief look we left silently, each one absorbed in his own thoughts.

We returned to Philadelphia, having done a good day's work in the way of sight-seeing, and found Mr. King an excellent Mentor through it all, our only regret being that our visit at each point of interest was necessarily brief.

But we were not yet done. Having accepted some invitations at Germantown, and being desirous of examining Mr. Bright's system of planting and pruning, we increased our party the next morning, and took the early train. We were met at the depot by Dr. Houghton and Mr. Bright, and conveyed first to Dr. Houghton's new place. Some of us, no doubt, went prepared to criticize all we saw, and others in a state of bewildering uncertainty, haying heard so many contradictory reports of what we should see. We first went through the grapery. This is one year old, and built on Mr. Bright s "inside border" principle, which he has heretofore fully-described in these pages. As some misapprehension exists in regard to the concrete bottom, we will add here that the bottom of the border is elevated several inches above the bottom of the house, so that it is impossible for stagnant water to accumulate in it. The vines are young, but have made a fine growth of round, stout, shorted-jointed wood, and are all that could be desired. The vines in pots were in the same excellent condition, and gave us much satisfaction.

On the whole, every thing seemed to be working here as well as Mr. Bright could desire; we should have no doubt of his success, with some modification of his ventilation, and some further precaution for moisture in his borders as his vines advance in age, all of which he will no doubt look after sharply.

We next examined the new vineyard. The vines are planted two feet apart, on the " single stem renewal system." They are one year old, have made a fine growth, and are in the best condition. Mr. Bright's system has provoked a good deal of discussion, which is all right and proper enough when confined to the merits of the system itself, which has not always been the case. In the meantime, we bespeak for it a fair trial. Let Mr. B. go on with his experiment, as we judge he will in spite of all opposition; the horticultural community will be benefited whether he succeeds or fails. We would suggest to him, however, that his chief difficulties will begin when the vines have attained the age of some five or six years, when some additional "safety valves" will be needed, which he may find the means of supplying; and by that time he will have demonstrated how far, if at all, old wood is necessary to the highest condition of fruit; a very interesting and important point of great practical value. His system is so simple that we wish he may find all his anticipations realized.

We shall watch his progress with much interest.

We next examined the young pear orchard, chiefly in reference to the manner in which the trees are planted. From what we had heard, we expected to find this orchard a multitude of hillocks; but we were disappointed. On removing the charcoal mulch (which, by the way, is a good one) the ground was found to be level, offering no impediment to the cultivator. The roots were some two to four inches from the surface, just where they ought to bo. These trees were well planted, and none of the party, so far as we know, found fault with them in this respect, though some comments were made on the want of pruning, the benefits of which Mr. B., we believe, proposes to effect in his own way. The standard trees are alternated with dwarfs, and all are growing finely. The orchard is of considerable size, and will no doubt in time prove profitable.

After partaking of the doctor's hospitality and discussing some native vines, the party proceeded to Mr. Blight's nursery, where we found more graperies with inside borders, the vines being in very fine condition, and ripening off nicely. The vines in pots were also very fine. The party next walked over the grounds, and we were greatly pleased with its neatness, and the fine appearance of every thing it contained; it is a model in its way. The beautiful specimens of Firs, Junipers, and the lovely Golden Arbor Vitas, were especially noteworthy. The trees and shrubs are not huddled together, as is too frequently the case, and they consequently rapidly attain size and form, give more satisfaction, and Bell at a higher price.

Leaving Mr. Blight's, we made a brief call at the stately residence of Mr. Love ring, mainly to see his orchard house, an account of which we have already published by our correspondent, Dr. Norris. This orchard house is of large size, and has been built at some expense, and the owner has, no doubt, aimed to erect the best possible house for this purpose, and to conduct all the operations pertaining to it in such a way as to insure the best success. We admire the spirit and enthusiasm which lead a man into an enterprise of this kind, and therefore regret that we can not altogether approve of the arrangement of this house, and still more to be compelled to say, that in the management of his trees he has made a sad mistake from the beginning. We do not know whether Mr. Lovering is satisfied with the results thus far, but we know that he ought not to be. He has too many trees in the house by more than half, and they are not grown as they should be. We would on no account say a word of discouragement, and we hope he will begin again de novo.

Spending a few moments in walking over Mr. Lovering's beautiful grounds, we left with the intention of going to Mr. Smith's and Mr. Harrison's; but our time had fully expired, and so, thanking Dr. Houghton and Mr. Bright for their courtesy and attentions, we took the cars and returned to Philadelphia, well pleased with all we had seen.

We can not close without alluding to the reception given by Mr. James, on Wednesday evening, where we met most of the members of the society, and some of the leading citizens of Philadelphia. It was a time of much enjoyment, and passed off very happily.