UNIVERSITY OF CALIFORNIA OBSERVATORIES / LICK OBSERVATORY | |
| THE BUILDING OF LICK OBSERVATORY | |
![]() |
"The possibility that a complete astronomical establishment might one day be planted on the summit seemed more a fairy tale than a sober fact." | ||
| Captain Richard S. Floyd in the Publications of the Lick Observatory, Volume I, 1887 | |||
|
Shortly before his death in 1876, James Lick,
an adopted son of California and one of the state's wealthiest citizens,
put his name on a deed of trust which, among other bequests, designated a
sum of money for the construction of a telescope "superior to and more
powerful" than any yet made.
Lick's deed of trust did not spell out the details of the new observatory, leaving the Board of Trust great latitude and a great burden of responsibility in carrying out his wishes. Its president, and the board member most responsible for shaping the observatory, was Captain Richard S. Floyd. Floyd had met Lick in 1874, through the foreman of Lick's homestead, Thomas Fraser. Lick was immediately impressed by the younger man, and the following year, to Floyd's surprise, appointed him to head Lick's second Board of Trust. Surviving its dissolution by the impatient Lick, Floyd emerged as president of the third and final board. Richard Floyd was a plantation-raised gentleman, a veteran of the Confederate navy, a former prisoner of war, a sea captain, and, at age 31, retired and newly married to the beautiful and wealthy Cora Lyons. He was a practical man with gifts for art and mathematics and a position that afforded him the leisure to devote his talent and energy to building the world's largest telescope. He joined forces with Fraser, who, as superintendent of construction for the observatory, brought his skill, inventiveness, and loyalty to the job. Between them, Floyd and Fraser gave shape to Lick's dream. However, for all of Floyd's capability and enthusiasm, neither he nor any other member of the board possessed the specialized knowledge needed to build the observatory. Thus advice was sought from the great astronomical centers on the east coast of the United States and in Europe. The famous American astronomer Simon Newcomb of the U.S. Naval Observatory was selected as Scientific Advisor. In 1874 Newcomb and, two years later, Floyd (with his wife and three-year-old daughter Harry, who, ten years later, would lay the cornerstone of the great telescope's dome), traveled to Europe to confer with the most prominent astronomers and telescope builders of the time. Meeting Floyd at the outset of his year-long journey, Newcomb was skeptical that a man with no professional astronomical training could meet the challenge that Floyd had taken on, but his doubts would prove unfounded. Crucial questions needed answering before work could begin. What sort of telescope should it be? Who would build it? Who would undertake the difficult job of casting the glass for the largest lenses ever made--if, indeed, they could be made? In trying to settle these questions, Newcomb, Floyd, and the board found themselves in the middle of the rapidly heating debate over the comparative merits of refracting and reflecting telescopes. Refractors, which employ lenses to focus light, had been the choice of most astronomers since the invention of the telescope. Yet reflectors, which use mirrors instead of lenses, were gaining acceptance as mirror making materials and techniques improved and the reflector's optical advantages became evident. Some already saw the reflector as the telescope of the future, but it would be twenty years before another telescope at Lick Observatory would help to convince the astronomical world that the future lay with mirrors, and another ten before the era of large reflectors was truly underway. In the end the board chose the more conservative path, building what remains today the world's second largest refractor. The Cleveland firm of Warner and Swasey was chosen to build the telescope and its mount. Union Ironworks of San Francisco received the contract for the huge dome. The exacting work of shaping precise lenses from raw glass was entrusted to the optical firm of Alvan Clark and Sons of Boston. The only contract awarded to a European firm went to Charles Feil in Paris for producing glass blanks of high optical quality--and of a size never before attempted. Their production would cause years of delay in the completion of the telescope, and prove the near undoing of the House of Feil. In the meantime, beginning in 1874, Lick's Board of Trust began work on what would be perhaps its single most important decision: selection of the best possible site for the observatory. Today we assume that telescopes will be sited on mountaintops, but at the time of Lick's bequest, observatories were typically built in cities. However, cities--never the best location for a telescope--had become increasingly inhospitable environments for nighttime observing as outdoor street lights became common and smoke pollution grew. Astronomers were becoming aware of these problems, so the Board of Trust determined, despite the daunting logistical problems it presented, to investigate mountaintop sites for the new telescope. Thus Lick Observatory became the first permanently occupied mountaintop observatory in the world. Virtually all others have since followed suit. Numerous sites were considered. The first tentative choice was on the shores of Lake Tahoe, but had to be abandoned because deep snows made it inaccessible in winter. Other peaks were considered, including Mount St. Helena, in Sonoma County, and various prominent peaks in the San Francisco Bay area. Finally, in 1875, Thomas Fraser suggested Mt. Hamilton, after making a horseback trip to the summit. Although relatively unobtrusive as it nestles in the Diablo Range to the east of San Jose, Mt. Hamilton is the highest point within a radius of some 85 miles. It had, moreover, a particular appeal for Lick because it been a familiar sight from his South Bay estate. Lick approved of the choice, ending the long search for a suitable site. However, not even a trail led up Mt. Hamilton, so a "first-class road to the summit" to be funded by Santa Clara County was made a condition of the choice of site. A prominent scientific facility located in what was then an agricultural district promised considerable prestige for the county, which promptly agreed to undertake the project at a cost of $70,000. The federal and state governments granted approximately 2500 acres around and including the top of Mt. Hamilton to the Board of Trust. Thus, with the building of a road, began the construction of what was to become the first technological marvel in the same county which, many years later, would be home to one of the great technological centers of the modern world, known as Silicon Valley. The road, which came to be called "Lick Avenue" (now Mt. Hamilton Road), was completed in 1876. Many who drive it today find the road excessively winding--and by modern standards it is. But one must bear in mind that the road was designed for the transport of heavy equipment by horse and wagon. The slow moving horses didn't mind the many curves, and the grade, which nowhere exceeded seven percent, suited their labors. To the frustration of all involved, work on the observatory was then stalled by a series of legal disputes over the disposition of Lick's estate. Finally, in 1879, three years after completion of the road, the Board of Trust hired S. W. Burnham, an accomplished double-star observer, to test the observing conditions on Mount Hamilton. He visited the mountain in late summer and early fall--the best months for observing. His glowing report reinvigorated the project: | |||
| |||
| The actual work of building began in 1880; the overall responsibility for construction of the observatory was born by Captain Floyd, with Thomas Fraser as superintendent. Work began with the leveling of the mountaintop. | |||
| |||
|
Construction of the Main Building was simplified when Fraser unearthed a bed
of fine clay about a mile from the summit. Kilns were built near the deposit,
and more than three million bricks were fired, at the rate of 10,000 a day.
Even more important was his discovery of a spring near the summit, which could
provide much needed water for drinking and for water power, eliminating the
long haul from Smith Creek, six miles down the road.
The plan for the Main Building called for two domes, the larger of which would house the Great Refractor, connected by a long hallway flanked by offices, laboratories, and a library. First, the smaller dome began to rise on its cylindrical tower of bricks. By 1881, the small dome was completed and a 12-inch telescope installed. The 12-inch, purchased secondhand from Alvan Clark's workshop, began its nearly century-long career that same year, recording a transit of Mercury which launched scientific research on Mt. Hamilton seven years before the Great Refractor would see first light. From the side of the 12-inch dome, the long central hallway of the building began to emerge, advancing southward along the summit as construction progressed, finally reaching the point where it was to meet the 36-inch dome. And there it stalled. In Paris, at the House of Feil, the disks of glass for the two elements that would be used to make the giant lens had been quickly produced, but one was accidentally broken during shipment. Success in reproducing the broken element was proving elusive. Without the glass from Paris, the Clarks could not estimate the final focal length; without the focal length, the final length of the telescope could not be determined; with the length of the telescope unknown, the dome could not be built. Months of waiting turned into years, but late in 1885, after eighteen failed attempts, a suitable piece of glass was on its way to Boston. A year later, the largest lenses ever made had crossed the continent and were safely stowed on Mt. Hamilton, awaiting the completion of the telescope. With the lenses on hand, construction of the great dome could finally begin. | |||
| |||
|
Lick's funeral, ten years earlier, had been as grand as that for any head
of state. Flags in San Francisco flew at half staff for three days, while
thousands came to view his body. Hundreds followed the hearse,
drawn by four black horses, through the streets of the city to his resting
place in the Masonic cemetery. But early in January 1887, in
accordance with his wishes and at the appropriate stage in the
construction, James Lick was brought, for the first time, to the summit
of Mt. Hamilton, and laid to rest, for the last time, at the base of the
pier, hidden from sight beneath the floor of his great telescope. A
simple plaque inscribed with the words "Here Lies the Body of James
Lick" is the tomb's only adornment.
On a bitterly cold January night in 1888, the telescope saw "first light." The lens had been carried from its place in the observatory safe and installed in the telescope on December 31, but stormy weather prevented observing until, on January 3, a break in the clouds provided the first chance to put nearly fifteen years of planning and hard work to the test. One can only imagine the shock and distress that the small party in the dome must have felt when they found they could not focus the telescope--and their relief when it was discovered that an error in the estimate of the focal length had caused the tube to be built too long. A hacksaw was sent for and the tube unceremoniously shortened. The image of a "blazing red sun"--the bright star Aldebaran--came into focus. Again clouds and snow descended on the mountain, and another four days passed before the dome could be opened again. A buildup of ice prevented the dome from rotating, but with patience born of a decade of slow progress, Floyd and his men waited for the earth's rotation to bring a planet in sight of the telescope: | |||
| |||
| Sadly, Floyd's triumph was diluted by illness and disappointment. Chronic heart disease, and bitterness over unfounded criticism of Floyd and the telescope in the San Francisco press, were taking their toll. In February 1888 he wrote to Simon Newcomb: "I am tired and heartily disgusted with the contemptible worries wholly unexpected that beset the closing of my work here. And shall be sincerely glad when the Regents relieve me of responsibility." In April he declared the observatory ready for transfer to the University of California. Less than three years later, Floyd died at age 47. | |||
|
| |||
|
Text is copyright 1998, Tony Misch and Remington Stone.
Images are copyright University of California and The Mary Lea Shane Archive. The authors are indebted to two sources in particular for the material in this essay: Eye on the Sky by Donald Osterbrock, John Gustafson, and W. Shiloh Unruh, University of California Press, 1988, and The Generous Miser by Rosemary Lick, Ward Ritchey Press, 1967. | |||