Dickson: 506 books

This 1st volume in the series History of the Theory of Numbers presents the material related to the subjects of divisibility and primality. This series is the work of a distinguished mathematician who taught at the University of Chicago for 4 decades and is celebrated for his many contributions to number theory and group theory. 1919 edition.

Created during the Great Depression by the U.S. Forest Service, this guide was designed to provide environmental safety and maintenance advice for visitors to national forests and parks. Loaded with finely crafted drawings and plans for outdoor stoves and fireplaces, this manual offers a window into...

By the workings of chance Bleys Ahrens was born the genetic equal of Hal Mayne, the hero of The Final Encyclopedia, but he was destined by nurture to a far different fate. Raised alone by his unhappy Exotic mother, Bleys was an outcast from every society until his half-brother Dahno claimed him. Disciplined...

One man is mentally linked to an alien who is spearheading an invasion of Earth; a group of soldiers fight to win new space for Earth; and a small group of men fight against a machine that controls all life.

In The Dragon on the Border, Sir James, the Dragon Knight, faces his most terrifying challenge - the Hollow Men, spirits of the dead in empty suits of armour. Their weapons are all too real, and a slain Hollow Man can be resurrected within two days. As long as one of their unholy number endures, no...

Baron Jim is in the thick of it again. Somehow he's found himself taking on England's oldest enemy - the French - who have entered into an unholy alliance with a most fearsome horror: the mighty serpents of the deep underseas. Nobody has battled them before; nobody even realised they could leave the...

Tis the season for treachery: The Earl of Somerset is throwing a lavish Christmas feast, a revel above all others to celebrate the holiday. But the Dark Powers have chosen this joyous time to launch a massive offensive. An army of land-hungry trolls has laid siege outside the Earl's fortress, while...

As a young mathematician, Jim Eckert was transported to a parallel medieval world where he found he had the ability to transform himself into a large but none-too-bright dragon named Gorbash. Jim Eckert's daring exploits have earned him a title - Baron de Bois de Malencontri et Riveroak - and he has...

The black-clad mercenaries of the Friendly planets fought where their employer and their God dictated. On New Earth they pitted their fanaticism against the cold courage of the Dorsai. And the implacable hatred of one man, Tam Olyn. Olyn saw his brother-in-law shot down before his eyes. His quest...

The machine that controlled all life wouldn't tolerate any interference. People who refused to be regulated had to be disposed of - isolated, driven insane, murdered. A small group of men had dedicated themselves to fighting this Frankenstein of man's technological achievement. Secretly they laid...

Jens Wylie would never leave Earth, but his heart was with the brave men and women of the first Mars Expedition, enchanted by the siren song of the stars. As U.S. Undersecretary of Space, he thought he could share some small part of that bold adventure. But as the mission progressed, Jens saw the...

The Dorsai are the finest soldiers ever trained to fight and win against all odds. The Spirit of Dorsai is an illumination of the heart and soul of the planet Dorsai and its people, showing with epic clarity and unforgettable vision how why the Dorsai fight and live. It tells of the beginning when...

The Hooker. The Madam. The Driver. All on a collision course to a place where madness holds sway. After four years working in a New York brothel to pay off a debt to the mob, Nina is nearly paid up and ready to go home. She just needs to see one more client, a recluse who always pays a half-million...

Bleys Ahrens is now a political power on the planet Association, home of the Friendlies. His people--his Others, not Dorsai or Friendly or Exotic, but hybrids--are in place on all the new worlds, and are ready to take his message to the greater human public. But within his inner circle is Henry McLean,...