it compiles, that's better than it not compiling, right?

code/modules/surgery/organs/augments_chest.dm

@@ -25,7 +25,7 @@
 		synthesizing = TRUE
 		to_chat(owner, message)
 		owner.nutrition += nutrition_amount
-		addtimer(CALLBACK(src, .proc/synth_cool), 50)
+		addtimer(CALLBACK(src,PROC_REF(synth_cool)), 50)
 
 /obj/item/organ/cyberimp/chest/nutriment/proc/synth_cool()
 	synthesizing = FALSE
@@ -59,7 +59,7 @@
 /obj/item/organ/cyberimp/chest/reviver/on_life()
 	if(reviving)
 		if(owner.stat == UNCONSCIOUS)
-			addtimer(CALLBACK(src, .proc/heal), 30)
+			addtimer(CALLBACK(src,PROC_REF(heal)), 30)
 		else
 			cooldown = revive_cost + world.time
 			reviving = FALSE
@@ -108,7 +108,7 @@
 		if(H.stat != DEAD && prob(50 / severity) && H.can_heartattack())
 			H.set_heartattack(TRUE)
 			to_chat(H, "<span class='userdanger'>You feel a horrible agony in your chest!</span>")
-			addtimer(CALLBACK(src, .proc/undo_heart_attack), 600 / severity)
+			addtimer(CALLBACK(src,PROC_REF(undo_heart_attack)), 600 / severity)
 
 /obj/item/organ/cyberimp/chest/reviver/proc/undo_heart_attack()
 	var/mob/living/carbon/human/H = owner

code/modules/surgery/organs/augments_internal.dm

@@ -117,7 +117,7 @@
 		return
 	crit_fail = TRUE
 	organ_flags |= ORGAN_FAILING
-	addtimer(CALLBACK(src, .proc/reboot), 90 / severity)
+	addtimer(CALLBACK(src,PROC_REF(reboot)), 90 / severity)
 
 /obj/item/organ/cyberimp/brain/anti_stun/proc/reboot()
 	crit_fail = FALSE

code/modules/surgery/organs/eyes.dm

@@ -291,7 +291,7 @@
 	if(!silent)
 		to_chat(owner, "<span class='warning'>Your [src] clicks and makes a whining noise, before shooting out a beam of light!</span>")
 	active = TRUE
-	RegisterSignal(owner, COMSIG_ATOM_DIR_CHANGE, .proc/update_visuals)
+	RegisterSignal(owner, COMSIG_ATOM_DIR_CHANGE,PROC_REF(update_visuals))
 	cycle_mob_overlay()
 
 /obj/item/organ/eyes/robotic/glow/proc/deactivate(silent = FALSE)

code/modules/surgery/organs/heart.dm

@@ -31,7 +31,7 @@
 /obj/item/organ/heart/Remove(mob/living/carbon/M, special = 0)
 	..()
 	if(!special)
-		addtimer(CALLBACK(src, .proc/stop_if_unowned), 120)
+		addtimer(CALLBACK(src,PROC_REF(stop_if_unowned)), 120)
 
 /obj/item/organ/heart/proc/stop_if_unowned()
 	if(!owner)
@@ -43,7 +43,7 @@
 		user.visible_message("<span class='notice'>[user] squeezes [src] to \
 			make it beat again!</span>","<span class='notice'>You squeeze [src] to make it beat again!</span>")
 		Restart()
-		addtimer(CALLBACK(src, .proc/stop_if_unowned), 80)
+		addtimer(CALLBACK(src,PROC_REF(stop_if_unowned)), 80)
 
 /obj/item/organ/heart/proc/Stop()
 	beating = 0
@@ -192,7 +192,7 @@ obj/item/organ/heart/slime
 	if(. & EMP_PROTECT_SELF)
 		return
 	Stop()
-	addtimer(CALLBACK(src, .proc/Restart), 20/severity SECONDS)
+	addtimer(CALLBACK(src,PROC_REF(Restart)), 20/severity SECONDS)
 	damage += 100/severity
 
 /obj/item/organ/heart/cybernetic/upgraded

code/modules/surgery/organs/tongue.dm

@@ -72,15 +72,15 @@
 	if(say_mod && M.dna && M.dna.species)
 		M.dna.species.say_mod = say_mod
 	if (modifies_speech)
-		RegisterSignal(M, COMSIG_MOB_SAY, .proc/handle_speech)
+		RegisterSignal(M, COMSIG_MOB_SAY,PROC_REF(handle_speech))
 	M.UnregisterSignal(M, COMSIG_MOB_SAY)
 
 /obj/item/organ/tongue/Remove(mob/living/carbon/M, special = 0)
 	..()
 	if(say_mod && M.dna && M.dna.species)
 		M.dna.species.say_mod = initial(M.dna.species.say_mod)
-	UnregisterSignal(M, COMSIG_MOB_SAY, .proc/handle_speech)
-	M.RegisterSignal(M, COMSIG_MOB_SAY, /mob/living/carbon/.proc/handle_tongueless_speech)
+	UnregisterSignal(M, COMSIG_MOB_SAY, PROC_REF(handle_speech))
+	M.RegisterSignal(M, COMSIG_MOB_SAY, TYPE_PROC_REF(/mob/living/carbon,handle_tongueless_speech))
 
 /obj/item/organ/tongue/could_speak_in_language(datum/language/dt)
 	return is_type_in_typecache(dt, languages_possible)