She picked up her portolan, cutting off any response.

Silence reached again for the portolan, opening it to the marked pages.

Still, it didn't match the pattern in the portolan.

Nodding to herself, she reached for the portolan.

Silence nodded, not entirely happily, staring at the unopened portolan.

She sighed, and glanced again at the portolan.

The next image after that was a walled city, its representation in the portolan incredibly detailed.

"If we use your portolan, Silence, you yourself said that we have to spend a great deal of time in mundane space.

This portolan is preserved in London, at the British Library.

She touched the lockplate, and lifted the lid, drawing out the battered portolan.

We'll do it by the portolan."

Those were the old symbols of the four elements, Silence realized abruptly, symbols taken from a system even older than the portolan itself.

Carignano's portolan has been variously dated between 1305 and 1327.)

Using a portolan.... Silence forced herself to look again at the double-page drawing spread out before her.

Sighing, she opened the portolan, turning the pages one by one until she found the drawing she was looking for.

Silence lifted the portolan onto the arms of the couch, opening it to the marked pages that showed the Limyre system.

The word portolan comes from the Italian adjective portolano, meaning "related to ports or harbours."

The term "portolan" means "pertaining to ports and harbors" and should not be confused with relating to Portugal.

Introduction to cartography portolan (PM 1999)

His most notable map is the portolan of 1439, containing the first depiction of the recently-discovered Azores islands.

If we went back by portolan, we'd have to spend so much time in mundane space that the Rose Worlders would be sure to spot us.

The oldest extant portolan is the Carta Pisana, dating from approximately 1296.

The cartographer Angelino Dulcert produced a portolan in 1339.

That was one more thing she hated about the portolan: its symbols promised much, but in the end proved as sterile as the rest of the method.

The latter is the first portolan known to have been produced in Palma, and considered the founding piece of the Majorcan cartographic school.