In an article about school bonds last week ("The Big Borrow") the Journal didn't include all charges paid by investors for two bonds. So although the Northern Humboldt Union High School District did get about $52,000 for a bond that requires it to repay just over $1 million, the investor in that bond paid more than that $52,000. The investor also paid a premium of nearly $96,000, which didn't go to the school district, but was used to cover some of the district's borrowing costs, according to Isom Advisors. A $4,976 bond sold by the Blue Lake Union Elementary School District, which pays the investor $160,000 when it matures in 2040, also was sold at a premium of close to $20,000, according to Caldwell Flores Winters Inc., the district's bond adviser.