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Cathedral Stone

The Great Eastern Stone Arch

The great eastern stone arch looms above Morningside Heights at the close of the nineteenth century. It was the signature image of the cathedral construction in those days and the culmination of years of excavation and foundation building. The keystone was only half an inch out of position laterally and 3/4 of an inch vertically when the arch completed. Before any of that began however, it is important to understand the significance of the Romanesque arch in the design by Heins and La Farge.

In their design, the number one key feature was a large crossing. The crossing is the intersection of the transepts and the nave. They explain the aim of this crossing plan as follows: “so that the greatest possible number” of people “may be properly so placed as to see and hear.” To accomplish this, four rounded or Romanesque arches create a 96 foot square at the crossing. The typical Gothic crossing using pointed arches is about 47 feet.

Support for the Lantern

Additionally, the design called for a massive 16-sided lantern/tower above the crossing, supported by the four Romanesque arches. The place of hearing was also to be the greatest source of light in the cathedral.

The ground floor plan shows four very large square piers standing at the corners of the crossing. Next to each of these and set at right angles with them, are two smaller piers – eight in all. Between the larger piers spring the four great arches which bound the crossing and carry the central tower. From the outer piers spring buttress arches meeting the great arches at about their point of springing. Both piers and arches are of the most solid granite blocks because of the enormous weight they have to bear. The load upon the base of each of the four corner piers, according to the architect, will be about 35 million pounds.

Architect Grant LaFarge had the following to say regarding the recent use of concrete and steel construction. “As to structure, this quality can be insured only by the use of imperishable materials in visibly massive construction. Any device as the modern steel frame, commercial and of unknown duration, is instantly to be dismissed; so, too the indiscriminate use of the hasty and half understood concrete, treacherous, but dear to the engineer. A building of masonry, with true vaulting, is the only possible thing.” Stone on stone construction was the order of the day.

A building of masonry, with true vaulting, is the only thing.”

– C. Grant La Farge

Excavation, Foundations, and Piers

The soil and rock lacked stability after the siting and the laying of the cornerstone in 1892. They built St. Luke’s Hospital across the street on bedrock at grade. At the Cathedral, excavation had to go as deep as 72 feet in places, through all rock of poor quality to underlying solid strata no less than 20 feet in thickness.

1895 excavation for the Cathedral
Excavation for the Cathedral. – Irma and Paul Milstein Division of United States History, Local History and Genealogy, The New York Public Library. (1895)

Once the excavation was down to bedrock, dewatering took place and the workers laid footings of Portland cement. The massive granite blocks for the foundation of the eastern stone arch began to move in. Then the piers began to rise, 38 square feet at the base.

The Eastern Stone Arch and Buttresses

The springing line at each of the great arches will be 16 feet above the top of the 79 foot pier and its span will be 114 feet from tip to tip of the voussoirs. The clear span is 96 feet. The voussoirs are granite and cut to template. The rise was 55 feet. They weighed between 3 and 6 tons each and laid in mortar of Portland cement.

Voussoirs in Arch

Arch construction depends essentially on the wedge. These wedge shaped blocks are called voussoirs. Each voussoir must be precisely cut so that it presses firmly against the surface of neighboring blocks and conducts loads uniformly. The central voussoir is called the keystone. The point from which the arch rises from its vertical supports is known as the spring, or springing line.

After the deaths of Bishop Potter (1908) and the architect George Heins (1907), the trustees did not renew the contract for architect La Farge (1911). The work on the transepts was not completed nor the great lantern/tower. The Crossing, Choir, Chancel and Apsidal Chapels were complete. The Crypt hosted services. The selection of a new architect was in the works. The love affair with the unique mix of Byzantine, Romanesque and Gothic greatly diminished. The crossing would remain the dimmest place in the cathedral.

  • Scribners Magazine, V. 41, 1907
  • The Churchman, May 30, 1891, Competitive Design, Heins and La Farge
  • Scientific American, Building Edition, October 1900
  • Columbia University Library
  • New York Public Library
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Cathedral Stone

My Stoneyard Connection

My connection to the stoneyard began in the late 1980’s when John Barton, AIA, the son-in-law of the Dean of the Cathedral, James Parks Morton, invited me to see the stone working program. I was offered a place to stay in the Bishop’s guest quarters and visited the stone shed attached to the cathedral several times.

John introduced me to the cutters and carvers. I remember no names, only the intensity and dedication that showed in the faces. It was likely that I met Jose Tapia, Tim Smith and Eddie P. They were working…cutting and carving some of the thousands of stones necessary to complete the Cathedral’s towers. I wished I was one of them, but it was not to be, living in New Mexico with a stone masonry business that needed me and I needed it. However, my connection to the stoneyard has continued since that tour.

I would have traded places with any one of them.

The light filtering down from the skylights, the fine dust of limestone in the air and the tap, tap, tap, of hammer on chisel was mesmerizing. The vibe was intoxicating, especially to me who had already spent the last 13 years working with stone. I would have traded places with any of those carvers but I had a home and business to take care of. Upon leaving the Cathedral I had a feeling that we would meet again in the future. That experience had a profound affect on me and because of it I met many people who worked on the cathedral, most notably Joseph Kincannon, Nick FairPlay, and John Barton. All of them have added to my life and work.

And Now…

So, here it is 2020, the year of the coronaviris pandemic. Roger Murphy, friend and stone carving enthusiast, and I decided that the stone work of the Cathedral St. John the Divine needed to be be written about. The stonework at the Cathedral had for the most part been neglected for a number of reasons. One of those reasons may have been the attention given to the National Cathedral in Washington, D.C. It was being built and carved around the same time and received very much attention. Thus the divinestone.org blog was created.

My stoneyard connection was again activated when I was contacted by a friend of mine who was moving from New Mexico and was clearing out her collection of books. She asked me if I would be interested in claiming a few. It was in her bookcase that I found John Barton’s masters thesis, “The Divine Spirit of Architecture”. Written at Yale University, it covers 12 sacred structures and of course St. John the Divine was one of them. I let John know of my discovery and asked if it was ok to reprint some of it.

The hands of St. John the Divine reach far and wide. More about those hands in an upcoming post.

Mark Saxe’s website is www.saxstonecarving.com

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Divine Stone

The Historical Parapet

The Historical Parapet at the entrance to the Choir is designed to represent outstanding characters of 20 centuries of christianity. First of all, it is in two sections, one on each side of the steps leading from the Crossing to the Choir. Each section is 18.5 feet long and 4 feet high. It is built mainly of Champville (France) marble, in modified French Gothic Style. The twelve marble columns are alternately green, red and yellow. Furthermore they are of Alps Green from Italy, Rouge de Rance from Italy, and Numidian from Africa, respectively.

Choir Parapet South Half
Columbia University Libraries
Choir Parapet North Half
Columbia University Libraries

The representative character of the nineteen men was the basis for selection. As well, the selectors reviewed their contribution to the development of Christian civilization. The Architects Cram and Ferguson designed the Parapet, Ferrari modeled them. Finally, John Evans Company of Boston carved the figures.

The Evans company reserved the uncarved block for the figure selected at the end of the 20th century. Most noteworthy the front runners in 1922 were Theodore Roosevelt, Woodrow Wilson, Lloyd George, and Charles Evans Hughes.

 20th Century Stone Blank
20th Century stone blank next to 19th Century represented by Abraham Lincoln. – Lincoln Financial Foundation Collection

Time to add the 20th Century Carving

When the 20th century ended, the cathedral selected four individuals-unlike the previous centuries, and not all men. Chosen were Martin Luther King, Jr., Albert Einstein, Susan B. Anthony, and Mahatma Ghandi. As a result the task of carving the group from the stone that had been waiting for 78 years, came to Chris Pellettieri. At the time, Pellettieri was an Artist in Residence at the Cathedral and continues that relationship today.

Stoneyard Apprentice Chris Pellittieri
Stoneyard Apprentice Chris Pellettieri. – Photo Joseph Kincannon

Chris grew up in the neighborhood and attended the Cathedral School and sang in the choir. He remembers walking by the uncarved stone at the parapet as a youngster. After college and some contruction work, he found his way to the apprentice program. Some 30 years later, he remains an accomplished sculptor and carver.

20th century carving on Historical Parapet

“I was honored when the Cathedral chose me to make a sculpture of some of the most revered people of the 20th Century to stand alongside their existing sculptures. The surrounding carvings were all done in the 1920’s and it was a challenge to meet the high standards of that period as well as to squeeze four figures into the same sized niche as the others.” – Chris Pelletteri

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Divine Stone

A Few Good Machines

one of a few good machines
Giant Planer operated by Nelson Otero

In 1979 Jim Bambridge was starting to establish an apprentice program and a working stoneyard. He knew he needed a few good machines. Machinery had to be acquired to handle the giant blocks of stone arriving on a flatbed from the Indiana quarry. 20th century time and money saving technology supplemented the medieval crafts.

The 67-year-old giant planer removes excess stone from complex pieces. It had been lying beside an abandoned railroad track at the quarry for years. The planer was a rusty hulk with bushes and weeds growing through it. In a nearby pasture they found the big 60-inch circular saw.

60 inch Circular Saw
Al Rivera keeps a stone aligned as it is sawed on April 24, 1986. Photo Robert F. Rodriguez

“Such machines are hard to find anywhere today, so we salvaged them, had them steam cleaned and rebuilt with parts cannibalized from similar old wrecks we found here and there”

-James Bambridge

The 8-foot diamond toothed reciprocating saw is the only new item. It slices the huge quarry blocks. Bambridge had the saw made to his specifications in Scotland.

One of a few good machines
Newest Machine – Reciprocating Saw

Using The Machines

How these devices fit in the scheme of things becomes clear when a flatbed from the quarry arrives. There a two 8-10 ton blocks measuring about 4’x4’x12′. An overhead crane unloads and moves a block to a tracked dolly under the reciprocating saw. The long diamond toothed blade rocks back and forth across the stone, cooled by water pouring through the kerf.

As each slab is freed, one every three to four hours, it is moved to the nearby circular saw. The whirling diamond blade cuts rough building block sizes. If it is to be a moulded column base or section, it goes ahead to the planer. At the planer, it rides a platform that carries it under specially forged blades. These blades peel away excess stone between the high contours. They remove a quarter of an inch per five-second run.

Once these few good machines have finished their work, the blocks are ready for the stonecutters. They and their tools then face and shape them. These tools include everything from the wide boaster to oddly shaped devices with names like waster, punch, cockscomb, quirk and point. There are some 60 weird tools, many handed down from the Middle Ages through generations of stonemen.

  • Popular Mechanics, August 1983