First-rate early summer pears are scarce. Erhard's Seedling, which the Tribune named the "Ravenswood Pear" gives excellent promise, but it is not yet disseminated and proved in various localities, so we cannot now head the list with it. The only bearing tree is in the possession of Charles F. Erhard, Ravenswood, L. I., having been found by him in the woods, and brought home and planted in the garden; the fruit proves one of the earliest pears known, and is as delicious as the Seckel. In time we shall hear more of this chance seedling. But now we will proceed with Dr. Grant's list of twenty standard pears for general cultivation.

No. 1. Doycnni D'Ele

Doycnni D'Ele is a well-known early pear, ripening in wheat-harvest, and earlier than the Madeleine. It is extra beautiful; color, crimson and orange, upon yellow ground.

No. 2. Beurre Giffard

This follows closely upon No. 1, and is larger, and every way superior. In fact, it is an excellent pear, of medium size, and in color beautiful, being crimson shaded upon green and yellow ground.

No. 3. The Tyson Pear

This ripens a little later than No. 2, and proves here at five years after planting an abundant bearer. The tree is very vigorous And healthy, and its general appearance would be highly ornamental if it bore no fruit, but, as it does, it must be a very valuable variety. The fruit is of medium to large size, sugary and delicious, colored crimson on an orange cheek.

No. 4. The Bartlett Pear

This is a large-sized pear, of the true pear shape. Those now at hand measure three to four inches long and two and a half to three inches through, and this is about the fair average. The fruit, when ripe, is a dark green, with some brown spots. It should then be picked from the tree, and as it is hard, may be barrelled, and will bear transportation well. When mature it is pale yellow, and is very juicy and sweet, and much esteemed by the mass of people, though it is not considered by fruit counoiseurs a pear of first-rate flavor. We consider it one of the very best for general cultivation. The tree grows rapidly, bears early, and its tendency is to overbear, which must be guarded against by picking off the young pears. The Bartlett is a general favorite as a market pear, and sells wholesale at ten to fifteen dollars a barrel. It matures early in September.

No. 5. Flemish Beauty

This ripens next in succession to the Bartlett, and is one of the most beautiful trees in fruit that ever grew. Its growth is very vigorous and healthy, and it is a great bearer; fruit large, greenish, often with red and crimson blush, yellowing when mature, which is from September 1 to October 1. It is almost equal in flavor to the old Vergouleuse - rather more aromatic, and universally esteemed.

No. 6. Doyenne Boussock

This follows No. 5 in ripening, and is in every way excellent; the fruit large and beautiful, being the old Vergouleuse twice magnified. The tree grows rapidly, vigorous and healthy, and is one that every one can afford to plant, and will delight to see grow and bear.

No. 7. Beurre Bote

This is a magnificent pear, ripening the last of September; color beautiful cinnamon russet, always producing a good fair crop, but is not disposed to overbear.

No. 8. Bloodgood

This is a small-sized pear, of fine aromatic flavor, and in point of ripening it might have been placed next to No. 2. The tree is not a very vigorous grower, nor is it an early bearer, but a good one in making up an assortment.

No. 9. Dearborn's Seedling

This also ripens about with No. 8, or a little later, and of late years, in some localities, has not been as healthy as formerly, and therefore not as much in favor. The fruit, however, is delicious, has a very refreshing vinous flavor, is of small size, but the trees in good condition are very productive.

No. 10. Rostitzer

This also follows close upon No. 2 in maturing, and is very high-flavored, juicy, small size, though larger than the Seckel, and not unlike that pear, which by many is considered the standard of excellence. The Rostiezer is more vinous and less musky, and many prefer it to the Seckel.

No. 11. Paradise D'Automne

Those who desire to produce table-pears of a fine, rich, vinous character, will find this exactly what they want. It is juicy, melting, sugary, vinous, aromatic, and ripens in September. Color beautiful cinnamon russet. Trees often come from the nursery rather small, and it is considered a hard kind to propagate, but hardy when full-grown.

No. 12. Buffum

This is nearly a substitute for the old Vergouleuse, which, without some immediate remedy, is destined to extinction. This is not quite equal in texture to that old standard of excellence, yet the fruit is very high-flavored, of medium size, and when mature of a deep, rich golden color, shaded with crimson. As an ornamental tree the Buffum is unequalled by any of the pear family.

No. 13. Stevens's Qenesee

This is another fair representative of the Vergouleuse; though its texture is coarser, it is probably a seedling of that, and produces large-sized, beautiful fruit, of excellent flavor. The trees grow vigorously and healthy, and are generally much esteemed.

No. 14. Urbaniste

This pear ripens in October, and may, with a little care, be kept till winter, and is often thought better than the Vergouleuse. It is counted a tardy bearer, only producing at six or eight years old, and often not till twelve. The fruit is large, often crimson and reddish shaded on rich yellow ground, so that it is truly beautiful.

No. 15. The Seckel

This is generally esteemed one of the most delicious pears that grows. It is high-flavored, juicy, vinous, and through October and November, when in perfection, gives intense satisfaction to those who appreciate good fruit The tree is hardy, an abundant bearer;, fruit small, dark green, with a mingling of iron rust and brown; sometimes beautifully shaded, with crimson and orange.

No. 16. Oswego Beurre

This pear ripens in November, and will keep till January, and when perfectly matured is a most excellent variety; is sufficiently sugary, rich, vinous, and melting. The fruit is small, and so apple-shaped as sometimes to be mistaken. On the tree,.the fruit, has a singular appearance, often banging in ropes, not unlike bunches of onions.

No. 17. Lawrence

This is another November to January pear, of medium size and beautiful appearance, of fine lemon-color, and often a crimson and orange cheek when mature. It is rich in sweetness, sufficiently vinous, and very distinctly aromatic in flavor. The tree is not remark-I ably vigorous, though a fine healthy grower, and generally productive.

No. 18. Beurre Clairgeau

This is an early winter pear; the fruit is very attractive in appear ance, being of large size, sweet, battery, vinous, though not always melting. It is richly shaded crimson and fawn, upon a beautiful light orange ground.

No. 19. Lewis

This is another first-rate winter pear, when grown upon aged trees, and always productive, but upon young trees the fruit is often woody, and so is condemned without a fair trial. It is of medium size, and a good keeper.

No. 20. Winter Nclis

This may be considered the standard of winter pears, and is perfect in January, when it is rich, sugary, vinous, and unsurpassed by any other at that season. The tree is a slow grower, and does not appear very vigorous; naturally low, with drooping, wiry branches; always productive.

As a substitute for either of the late autumn varieties named, we would recommend Belle Lucrative, as it combines a rare assemblage of excellent qualities; in fact, some think it is unequalled. It has a rich, sugary flavor, and ripens in October; and the tree is vigorous and healthy, and if not suffered to overbear, always productive.

The above are all standards, and not recommended for dwarfs, of which we give a list, as follows, of six of the best sorts.