There is no difference between the 780 and the 785 MARC fields in the application of the first and second indicators.  

⮚Continued by. Denotes Serial A (recorded in the 245) has ceased, being continued by Serial B (Title recorded in the 785).  

245 00 $a Preliminary seismological bulletin.

785 00 $t TEIC quarterly seismological bulletin $x 0741-1898 $w (OCoLC)8978559 $w (DLC) 83007721

⮚Continued in part by. Denotes that a part of the title recorded in the 245 is being continued 

245 04 $a The Southeastern College art review and newsletter.

785 01 $a Southeastern College Art Conference. $t SECAC newsletter $w (OCoLC) 4973820.

⮚Merged with…to form. Denotes the title (recorded in the 245) has ceased and merged with a second title (recorded in the first 785) to become the tile recorded in the second 785).

245 00 $a Correctional services in Canada.

580 ## $a Merged with: Services correctionnels au Canada, to become: Adult correctional services in Canada.

785 17 $t Services correctionnels au Canada (Centre canadien de la statistique juridique) $x 0711-6810 $w (DLC) 88071637 $w (CaOONL) 880716371

785 17 $t Adult correctional services in Canada $x 0715-2973 $w (DLC) 83645544 $w (CaOONL) 840790694

⮚Absorbed by. Denotes the title recorded in the 245 below has been absorbed by the title recorded in Business week.

245 04 $a The annalist : $b a magazine of finance, commerce, and economics. 785 04 $t Business

785 04 $t Business week $g Oct. 1940 $x 0007-7135 $w (DLC) 31006225

⮚Absorbed in part by. Denotes that part of the title recorded in the 245 has been absorbed by Sheet metal worker.

245 04 $a The metal worker, plumber, and steamfitter.

785 05 $t Sheet metal worker $x 0096-9249 $w (DLC)sn 81006020

⮚Split into… and. Denotes that the title recorded in the 245 has split into two separate editions as recorded in two separate 785 MARC fields. 

245 00 $a Hospital practice.

580 ## $a Split into: Hospital practice (Hospital ed.), and: Hospital practice (Office ed.)

785 16 $t Hospital practice (Hospital ed.) $x 8755-4542 $w (DLC)sn 785 16 84001694

785 16 $t Hospital practice (Office ed.) $x 8750-2836 $w (DLC)sn 84037744