| ($ in thousands) | 2005 | 2004 |
| Assets | ||
| Cash and cash equivalents | $175,019 | $124,086 |
| Operating investments, at market | 110,468 | 88,746 |
| Accounts receivable, net | 222,778 | 229,561 |
| Inventories, prepaid expenses, and deferred charges | 48,411 | 39,296 |
| Contributions receivable, net | 35,074 | 40,922 |
| Notes receivable, net | 20,066 | 21,297 |
| Other assets | 12,855 | 17,917 |
| Investments held for long-term purposes | 1,540,386 | 1,408,688 |
| Property, plant, and equipment, net | 1,009,331 | 934,421 |
| Interest in net assets of foundation | 16,382 | 16,920 |
| Investments in perpetual trusts held by others | 52,451 | 50,622 |
| Total Assets | $3,243,221 | $2,972,476 |
| Liabilities and Net Assets | ||
| Liabilities: | ||
| Accounts payable and accrued expenses | $203,550 | $173,534 |
| Advanced receipt of sponsored research revenues | 34,644 | 31,141 |
| Deferred revenue | 45,897 | 40,520 |
| Third-party settlements payable, net | 76,730 | 59,360 |
| Accrued pension, post-retirement, post-employment obligations | 135,423 | 116,816 |
| Long-term debt | 535,430 | 504,240 |
| Refundable U.S. grants for student loans | 15,660 | 15,848 |
| Total Liabilities | 1,047,334 | 941,459 |
| Net assets: | ||
| Unrestricted | 1,726,153 | 1,587,176 |
| Temporarily restricted | 220,361 | 207,447 |
| Permanently restricted | 249,373 | 236,394 |
| Total Net Assets | 2,195,887 | 2,031,017 |
| Total Liabilities and Net Assets | $3,243,221 | $2,972,476 |