--------------+------+----+------+----------------------------------- | | | | Partial and | | |Medium| Relative Partial Dispersions. | | | Dis- +------+----+------+----+------+---- Name. |n_{D}.| ν. | per- | |C-D | |D-F | |F-G′ | | | sion.| C-D. |--- | D-F. |--- |F-G′. |--- | | | C-F. | |C-F.| |C-F.| |C-F. --------------+------+----+------+------+----+------+----+------+---- Extra Hard | | | | | | | | | Crown |1·4959|64·4|·00770|·00228|·296|·00542|·704|·00431|·560 Boro-silicate | | | | | | | | | Crown |1·5096|63·3|·00803|·00236|·294|·00562|·700|·00446|·555 Hard Crown |1·5175|60·5|·00856|·00252|·294|·00604|·706|·00484|·554 *Medium Barium | | | | | | | | | Crown |1·5738|57·9|·00990|·00293|·296|·00697|·704|·00552|·557 *Densest | | | | | | | | | Barium | | | | | | | | | Crown |1·6065|57·9|·01046|·00308|·294|·00738|·705|·00589|·563 Soft Crown |1·5152|56·9|·00906|·00264|·291|·00642|·708|·00517|·570 *Medium Barium | | | | | | | | | Crown |1·5660|56·3|·01006|·00297|·295|·00709|·704|·00576|·572 Barium Light | | | | | | | | | Flint |1·5452|53·5|·01020|·00298|·292|·00722|·701|·00582|·570 Extra Light | | | | | | | | | Flint |1·5316|49·0|·01085|·00313|·288|·00772|·711|·00630|·580 Extra Light | | | | | | | | | Flint |1·5333|48·5|·01099|·00322|·293|·00777|·707|·00640|·582 Boro-silicate | | | | | | | | | Flint |1·5623|47·4|·01187|·00343|·289|·00844|·711|·00693|·584 *Barium Light | | | | | | | | | Flint |1·5833|46·6|·01251|·00362|·288|·00889|·711|·00721|·576 Soda Flint |1·5482|45·8|·01195|·00343|·287|·00852|·713|·00690|·577 Light Flint |1·5472|45·8|·01196|·00348|·291|·00848|·709|·00707|·591 Light Flint |1·5610|43·2|·01299|·00372|·287|·00927|·713|·00770|·593 Light Flint |1·5760|41·0|·01404|·00402|·286|·01002|·713|·00840|·598 Light Flint |1·5787|40·7|·01420|·00404|·284|·01016|·715|·00840|·591 Dense Flint |1·6118|36·9|·01657|·00470|·284|·01187|·716|·01004|·606 Dense Flint |1·6214|36·1|·01722|·00491|·285|·01231|·715|·01046|·608 Dense Flint |1·6225|36·0|·01729|·00493|·286|·01236|·715|·01054|·609 Extra Dense | | | | | | | | | Flint |1·6469|33·7|·01917|·00541|·285|·01376|·720|·01170|·655 Densest Flint |1·7129|29·9|·02384|·00670|·281|·01714|·789|·01661|·678