There are 63 Logs in the game however 58 of them are found through out a standard playthrough I will mark them as is where they are found, as the 5 remaining logs are tied to the Expedition quests that you can do once you have reached a certain threshold of the Pioneering Effort Quest

• Trade Relations with Neighboring Countries
  
• Ship Monitoring Log
  
• Widespread Use of Mana and Its Problems
  
• A Number for Losers
  
• Report on the Forefront of Mana Research
  
• Easy Spending Money
  
• Emotional Impact
  
• The Group from the Capita
  
• Words of Appreciation to the Doctor
  
• Pray unto the Earth
  
• Mana Observation Record
  
• Precautions for Handling Equipment
  
• Marina's Journal
  
• Notice from the Security Agency
  
• The History of Memory Vials
  
• Letter to a Friend Who Moved to the Capital
  
• Areas Suited for Alchemy
  
• Aladissian History, Book Two
  
• Yannick's Travels, Ligneus Edition
  
• Those Pursuing the Spy "Alom" 1
  
• Welleks Ideology
  
• Welleks Etiquette
  
• The Harvest Deity Faith
  
• The Connection between Mana and Souls
  
• Research Report on Puni Ecology
  
• Observatory Investigation Record
  
• Research's Complaint
  
• Equipment Usage Advisory
  
• Mine Worker's Journal
  
• Explaining Manacholia
  
• Conditions for Alchemical Development
  
• The Alber Settlement
  
• Breaking News - Victory Report
  
• Alchemy and Magic, Magic Edition
  
• Alchemy and Magic, Alchemy Edition
  
• Flower Lover's Notes
  
• Elderly Reminiscence
  
• Aladissian History, Book Three
  
• Yannick's Travels, Sivash Edition
  
• Those Pursuing the Spy "Alom" 2
  
• Housewife's Top Secret Notes
  
• Station Lost and Found
  
• Regarding the Emperor's Visit to Auruma
  
• General-Purpose Mutant Production Plan
  
• Production Plan Postscript
  
• Benefits of Stirium
  
• Aladissian Imperial Military Regulations
  
• Restructuring of Research departments
  
• Draft of Mutant Utilization Plan
  
• Problems When Using Mutants
  
• Record of a Crazed Researcher
  
• Concerns of a Harvest Deity Follower
  
• Notice of Schedules Inspection for Circulator
  
• Future of Mana Activation Crystals
  
• Admiration and Worries
  
• Aladissian History, Book One
  
• Yannick's Travels, Auruma Edition
  
• Those Pursuing the Spy "Alom" 3
  
• An Alber's Wish
  
• A Researcher's Complaint
  
• Concerns of a Superior
  
• Rage-Filled Engravings
  
• Harvest Project Summary

Ligneus Region has 25 Memory Vials and I'll try my best to mark them

This Memory Vial is infact not acquired via exploration as you will be brought to this place by the story of the game if you can't get it now just wait until you are midway done the 3rd or 4th region










this one is inside the northwest build that would become your eventual Building site


Underground of Dux Lighthouse
if I remember correctly you will need the explosive or slashing bullets to explore this area so return here once you have some or can craft it after completing Sivash Pioneer quest



Top of Dux Lighthouse
After using the Mana Circulator keep going up and you will eventually get here





this one is exposed it shouldnt be hard to find as its just near the drop point from the warp spot


from the way point just follow the flooded path going south


just a few more steps from the second vial relatively close from the 2 adjacent vials




shouldnt be hard to miss but 3rd floor of the ruins should be in an exposed area


this is inside the Tower that you can approach semi normally or via the zip lines another one is by following the parallel path from the 8th Imperial Laboratory and then head west still following the road



Both Vials are found on the second floor of the ruins easy to find








This Area is normally accessible via the Exploration quest once you meet a certain threshold from the Pioneer Quest in Sivash



this one is found in the basement of the house


while this one is found above ground


you can navigate this area but can not exit normally when you first get here you need to do a bit of a light parkour and enter from the second floor balcony


This marks the found Memory Vials in Ligneus Region

has 15 Vials Total

this is basically inside the Wellek's Chief's house second floor



Found in the Main Hall



Inside the Caves of the Cathedral if you did Lenja's character quest you should be able to see it










in order to fully explore this location its better once you have the slashing bullet

Both Vials are in the open so it shouldnt be hard to find its just a matter of being able to interact with it









while both are in the open its also good that you have the slashing bullet unlocked








this one needs the slashing bullet






this marks the end of Sivash's exploration

18 Memory Vials in Auruma



this is found on the Rooftops





on the surface overlooking the structure


1 inside the station on the way to the circulator


1 near an NPC on the floor where the circulator is near a broken train


1 near the "offering altar" for Corleonis made by the Geni



on the table on the very first room on the right upon entering the larger building


on the ground that "blends well" in the smaller building in the ruins



upon clearing the mana in the area go up the ladder it shouldnt be hard to find


as you can see there's a Kong type enemy nearby and is on the ground floor


Second Floor of the ruins shouldnt be hard to Find



after beating Corleonis go near the outcropping rocks east of the teleport zone


Near the Mana Circulator of Pergrica Turm





its on the second floor near White Punis


Second floor of the ruins




This Concludes all of the Locatable Vials in the game that doesnt use Story/Quest Progress well except for the 1 in the Atelier in Ligneus