So since everyone is having trouble with alchemy part -- use this and blow your competition away.
I quickly make a list of stuff thats left and right, just ignore the top shelf its unreachable. This is the way on my server (Darksorrow-EU). If its different on yours (easy to check) just copy-paste this in say notepad and update the table.
This is the list of items that I found. L or R in bracket tells you whether its left or right or both (LR) or unknown (?). * marks rare ingredients -- I figured out there's only 1 of these and on only 1 shelf. This is where they were in my case (not sure if/how do they "respawn"):
Ingridients on shelves:
(L ) *Abomination Guts [pancake w/ green smoke]
( R) Amberseed [brown spikey lump]
( R) Ancient Ectoplasm [a bowl (not vial!) with white glowing liquid vaporizing]
(L ) Blight Crystal [orange glowing crystal]
(L ) *Chilled Serpent Muccus [small cyan bottle]
(L ) *Crushed Basilisk Crystals [shiny blue crystals]
( R) *Crystalized Hogsnot [brown poo crystals]
(LR) Icecrown Bottled Water [long dark blue vial]
(L ) *Frozen Spider Ichor [vial with white glowing liquid coming out of the top; NOT ectoplasm]
( R) *Ghoul Drool [transparent vial with a purple/blue fluid weakly vaporizing]
(LR) Knotroot [brown straight spike; don't confuse w/ Raptor Claw]
(LR) Pickled Eagle Egg [just 1 big egg; not 2]
(LR) Prismatic Mojo [gray-transparent bottle; doesn't glow]
(LR) Pulverized Gargoyle Teeth [yellow-brownish bag, very easy to spot]
( R) Putrid Pirate Perspiration [bottle with green fluid vaporizing]
(LR) Raptor Claw [gray angled spike; don't confuse with Knockroot]
( R) Shrunken Dragon's Claw [white claw]
(LR) Speckled Guano [blue jar]
(LR) Spikey Spider Eggs [1 big and 1 small egg glued together]
( R) *Trollbane [purple vial]
( R) Wasp Wings [very small white wings; hard to click]
(L ) Withered Batwing [brown, 5-spike wing bones]
Stuff on the ground / off-shelf:
(LR) Muddy Mire Maggots
(LR) Hairy Herring Heads
(LR) Seasoned Slider Cider
If you fail, you can abandom all Troll Patrol daily quests in the log and go back to step 1. This restarts the "buff" timer.
Remeber if you're leveling, this is 5x5k xp from each individual patrol, 21k on turn in and 31k on congrats quest, thats ~ 70k xp. Plus tons of money and argent crusade rep.
EDIT: Yeah, right and left from the viewpoint of facing Alchemist. My initial guess is then that they are randomized at server reset or are on separate long timer. They were like this on my server for 2-3 days straight (no restarts). Also added 'trollbane' to the list -- didn't spawn to me; so I'll assume it's "rare". So maybe I should rather just mark them as either "both sides" or "one side".
EDIT2: Added Crystalized Hogsnot.
TheWoWDB
