MSSA Add New link to Research menu: Structure > Menus > MSSA Min Menu > Add link
"Using Special Collections at Yale" under -- Research,
=> Link will show up both Research Block and Research Dropdown The default space need to add more height
in Firefox 
compare smaller font size (in IE) 
If need add the height:
Site > All > themes > yul > css > yul-yul-default.css
Find .context-mssa #zone-menu .research-block-nav .cont to change height
.context-mssa #zone-menu .research-block-nav .content {
height: 175px;
}
Do the same change for yul-yul-default-narrow.css and yul-yul-default-normal.css