The order of service in the Christian Science Church does not differ widely from that of any other sect save that its service includes the use of Mrs. Eddy's book entitled SCIENCE AND HEALTH WITH KEY TO THE SCRIPTURES in perhaps equal measure to its use of the Bible--The reading is from the two alternately; the singing is from a compilation called the "Christian Science Hymnal," but its songs are for the most part those devotional hymns from Herbert, Faber, Robertson, Wesley, Browning, and other recognized devotional poets, with selections from Whittier and Lowell, as are found in the hymn books of the Unitarian churches. For the past year or two Judge Hanna, formerly of Chicago, has filled the office of pastor to the church in this city, which held its meetings in Chickering hall, and later in Copley hall, in the new Grundmann Studio building on Copley square. Preceding Judge Hanna were Rev. D.A. Easton and Rev. L.P. Norcross, both of whom had formerly been Congregational clergymen. The organizer and first pastor of the church here was Mrs. Eddy herself, of whose work I shall venture to speak, a little later, in this article. Last Sunday I gave myself the pleasure of attending the service held in Copley hall. The spacious apartment was thronged with a congregation whose remarkable earnestness impressed the observer. There was no straggling of late-comers. Before the appointed hour every seat in the hall was filled and a large number of chairs pressed into service for the overflowing throng. The music was spirited, and the selections from the Bible and from SCIENCE AND HEALTH were finely read by Judge Hanna. Then came his sermon, which dealt directly with the command of Christ to "Heal the sick, raise the dead, cleanse the leper, cast out demons." In his admirable discourse, Judge Hanna said that while all these injunctions could, under certain conditions, be interpreted and fulfilled literally, the special lesson was to be taken spiritually--to cleanse the leprosy of sin, to cast out the demons of evil thought. The discourse was able, and helpful in its suggestive interpretation. THE CHURCH MEMBERS.