Natural History & General Biology

Volume, Title, and Unique Books data collected on May 31, 2008.
Circulation statistics for the ALC fiscal year ending May 31, 2008.

Volume Count and Average Age

Counts and average ages of volumes (individual barcoded items) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899	24		1	4	4	33
1900-1909	9		6	6	1	22
1910-1919	12		6	2	2	22
1920-1929	25		5	4	3	37
1930-1939	34		3	6	5	48
1940-1949	57		20	6	7	90
1950-1959	204	2	53	93	38	391
1960-1969	448	11	199	294	73	1,025
1970-1974	189	8	134	230	45	608
1975-1979	107	11	81	132	51	382
1980-1984	112	11	83	136	86	428
1985-1989	81	15	102	164	28	390
1990-1994	94	52	55	68	73	342
1995-1999	90	55	54	90	79	368
2000-2004	77	36	85	62	75	335
2005	5	9	24	7	11	56
2006	4	2	22	6	16	50
2007	3	8	16		5	32
2008		1	1			2
Totals	1,575	221	950	1,310	602	4,661
Average Age	1969	1992	1978	1976	1982	1976
Percent of Collection	0.55%	0.09%	0.59%	0.93%	0.77%	0.51%

Title Count and Average Age

Counts and average ages of titles (excludes duplicate copies) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899	20		1	2	3	24
1900-1909	8		5	6	1	20
1910-1919	12		6	2	2	22
1920-1929	24		5	4	3	33
1930-1939	30		3	5	5	38
1940-1949	37		20	6	7	61
1950-1959	188	2	47	80	38	275
1960-1969	378	11	186	276	66	709
1970-1974	158	8	129	223	42	468
1975-1979	98	11	78	121	43	312
1980-1984	104	11	81	128	85	323
1985-1989	78	15	95	148	27	295
1990-1994	89	45	55	63	73	281
1995-1999	84	49	50	87	77	284
2000-2004	43	30	77	58	68	241
2005	5	8	24	7	11	48
2006	4	2	22	6	16	45
2007	3	7	16		5	30
2008		1	1			2
Totals	1,363	200	901	1,222	572	3,511
Average Age	1969	1992	1978	1976	1982	1976
Percent of Collection	0.59%	0.11%	0.63%	0.97%	0.81%	0.55%

Unique Books Count and Average Age

Counts and average ages of unique books (titles held by only one ALC library) in Natural History & General Biology. This count only includes bound monographic materials.

	ACU	APL	HSU	McM	HPU
1400-1699
1700-1799
1800-1899	15				1
1900-1909	7		4	6	1
1910-1919	12		6	2	2
1920-1929	19		2	4	1
1930-1939	25		1	2	1
1940-1949	25		14	1	4
1950-1959	126	2	16	35	13
1960-1969	220	4	75	141	20
1970-1974	87	4	72	145	21
1975-1979	65	8	52	93	32
1980-1984	66	6	36	70	53
1985-1989	53	6	53	87	10
1990-1994	60	29	31	34	36
1995-1999	54	26	32	44	34
2000-2004	26	17	55	29	33
2005	5	7	17	5	5
2006	4	2	12	5	8
2007	1	6	14		4
2008		1	1
Totals	870	118	493	703	279
Average Age	1968	1993	1980	1976	1983

Total Circulation

A count of charges and renewals for Natural History & General Biology. This count only includes circulation of bound monographs, CDs, videos, and DVDs.

	Patron System
	ACU	APL	HSU	McM	CJC	HPU	Total
ACU Items	48	8	3	0	0	0	59
APL Items	11	121	1	0	0	0	133
HSU Items	6	5	52	0	0	3	66
McM Items	2	0	4	26	0	0	32
HPU Items	2	0	0	0	0	28	30
Totals	69	134	60	26	0	31	320

Circulation by Item Age

A count of charges and renewals for Natural History & General Biology, broken down by item age and item owner. This count only includes circulation of bound monographs, CDs, videos, and DVDs, and only items which have a valid date in their DATE_1 field.

	ACU	APL	HSU	McM	HPU	ALC
1400-1699
1700-1799
1800-1899
1900-1909	1					1
1910-1919
1920-1929	1					1
1930-1939
1940-1949			1			1
1950-1959	3		3	5		11
1960-1969	2	6	3		2	13
1970-1974	1	4	5		1	11
1975-1979	2	2	3	3		10
1980-1984		3	2	2		7
1985-1989	2	11	1	4	3	21
1990-1994	4	16	7	5	8	40
1995-1999	14	25	9	3	2	53
2000-2004	23	18	14	6	12	73
2005	2	10	4			16
2006	2	4	6	4	2	18
2007	2	27	8			37
2008		7				7
Totals	59	133	66	32	30	320
Percent of Circulation	0.17%	0.02%	0.32%	0.52%	0.54%	0.04%

Non-Circulating Use

A count of Non-Circulating usage for Natural History & General Biology (as recorded by the circulation "Mark Item Used" command). This count only includes bound monographs, CDs, videos, and DVDs.

ACU	APL	HSU	McM	HPU
21	0	10	40	1

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