63-5. Polycrates, who ruled over the Island of Samos, was the patron of Anacreon. _Tyrant_ in the Greek sense meant simply “ruler” or “master,” and as here used the word does not imply harshness or cruelty.
68. =Chersonese.= The word literally means a peninsula. Here it refers to the Tauric Chersonnesus, the modern Crimea.
72. That is, he bound the Greeks together to resist their enemies.
74. =Suli.= A mountainous district inhabited by a mixed Greek and Albanian people.
=Parga.= A fortified town on the coast of Albania.
76. =Doric mothers.= Spartan mothers. The Spartans belonged to the Dorian race.
78. =Heracleidan blood.= The descendants of Heracles (Hercules).
=might own.= Might not be ashamed of. Supply _that_ or _which_ at the beginning of the line.
80. Louis XVIII was at this time king of France. Perhaps Byron is referring to Napoleon, who entered into alliance with the Turks.
91. =Sunium.= The southern promontory of Attica.
=marbled steep.= The temple of Athena stood on this promontory.
94. =swan-like.= See Morte D’Arthur, line 267, and note.
1. =As.= The word _so_ in line 9 is correlative with _as_, introducing the other member in the comparison.
3. =towers of sail.= Filled with the breeze, which has sprung up in the night. This line forms a predicate completion of _are descried_ (line 4).
7. =but.= Except, that—not. Did not dream but that, each, etc.
9. =E’en so.= Just in the same way differences in opinion arise between friends.
13. Unknown to each other, both came under different influences that changed the course of their opinions and beliefs.
16. =dawn.= When their beliefs were made known.
17. =To veer, how vain.= When people have drifted apart in their points of view it is vain for them to try to change their course to come together again.
27-8. Clough hopes that wherever the course of events may carry the human race, sometime, somewhere, all differences in thought may be reconciled.
1-7. The nautilus is a species of shell-fish. The shell is spiral, and is divided into chambers or cavities. The animal occupies only the outer cavity. The others are filled with gas. The belief once existed that the nautilus was furnished with a membrane which served as a sail. The root meaning of the word _nautilus_ is “a ship.” This old belief is, however, only a poetic fancy. The nautilus creeps along the bottom of the sea, and does not come to the surface to swim or sail.